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and whereas the attached publication of the Bureau of Indian Standards is of particular interest
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Mazdoor Kisan Shakti Sangathan
Jawaharlal Nehru
IS/IEC 60079-20-1 (2010): Electrical appratus for explosive
gas atmospheres, Part 20: Material Characteristics for Gas
and Vapour Classification, Section 1: Test Methods and Data
[ETD 22: Electrical Apparatus for Explosive Atmosphere]
“!ान $ एक न' भारत का +नम-ण”
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“Invent a New India Using Knowledge”
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता ह”
है”
ह
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”
IS/IEC 60079-20-1 : 2010
[Superseding IS 7820 : 2004/IEC 60079-4 : 1975,
IS 9570 : 1980, IS 9735 : 2003/IEC 60079-1-1 : 2002 and
IS/IEC 60079 (Part 20) : 1996]
Hkkjrh; ekud
foLiQksVh i;kZoj.k
Hkkx 20 xSl ,oa ok"i oxhZdj.k osQ fy, lkexzh xq.kèkeZ
vuqHkkx 1 ijh{k.k i¼fr;k¡ ,oa vkadM+s
Indian Standard
EXPLOSIVE ATMOSPHERES
PART 20 MATERIAL CHARACTERISTICS FOR GAS AND VAPOUR CLASSIFICATION
Section 1 Test Methods and Data
ICS 29.260.20
© BIS 2012
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
October 2012
Price Group 16
Electrical Apparatus for Explosive Atmospheres Sectional Committee, ETD 22
NATIONAL FOREWORD
This Indian Standard (Part 20/Sec 1) which is identical with IEC 60079-20-1 : 2010 ‘Explosive
atmospheres — Part 20-1: Material characteristics for gas and vapour classification — Test methods
and data’ issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau
of Indian Standards on the recommendation of the Electrical Apparatus for Explosive Atmospheres
Sectional Committee and approval of the Electrotechnical Division Council.
This standard supersedes the following Indian Standards:
IS 7820 : 2004/IEC 60079-4 : 1975
IS 9570 : 1980
(Assistance drawn from
IEC 60079-12 : 1978)
IS 9735 : 2003/IEC 60079-1-1 : 2002
IS/IEC 60079 (Part 20) : 1996
Electrical apparatus for explosive gas atmospheres — Method
of test for ignition temperatures (first revision)
Classification of flammable gases or vapours with air
according to their maximum experimental safe gaps and
minimum igniting currents
Electrical apparatus for explosive gas atmospheres —
Flameproof enclosures “d” Method of test for ascertainment
of maximum experimental safe gap (first revision)
Electrical apparatus for explosive gas atmospheres: Part 20
Data for flammable gases and vapours relating to the use of
electrical apparatus
The text of IEC Standard has been approved as suitable for publication as an Indian Standard without
deviations. Certain conventions are, however, not identical to those used in Indian Standards.
Attention is particularly drawn to the following:
a) Wherever the words ‘International Standard’ appear referring to this standard, they should be
read as ‘Indian Standard’.
b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice
is to use a point (.) as the decimal marker.
In this adopted standard, references appear to certain International Standards for which Indian
Standards also exist. The corresponding Indian Standards, which are to be substituted in their
respective places are listed below along with their degree of equivalence for the editions indicated:
International Standard
Corresponding Indian Standard
IEC
60079-11
Explosive
atmospheres — Part 11 : Equipment
protection by intrinsic safety “i”
IEC
60079-14
Explosive
atmospheres — Part 14 : Electrical
installations design, selection and
erection
IS/IEC 60079-11 : 2006 Explosive
atmospheres: Part 11 Equipment
protection by intrinsic safety “i”
IS 5571 : 2009 Guide for selection
and installation of electrical
equipment in hazardous areas (other
than mines)
Degree of Equivalence
Identical to
IEC 60079-11 : 2006
Modified
Only the English language text of the International Standard has been retained while adopting it in
this Indian Standard, and as such the page numbers given here are not the same as in the IEC
Publication.
For the purpose of deciding whether a particular requirement of this standard is complied with, the
final value, observed or calculated, expressing the result of a test, shall be rounded off in accordance
with IS 2 : 1960 ‘Rules for rounding off numerical values (revised)’. The number of significant places
retained in the rounded off value should be the same as that of the specified value in this standard.
IS/IEC 60079-20-1 : 2010
–6–
60079-20-1 © IEC:2010
EXPLOSIVE ATMOSPHERES –
Indian Standard
Part 20-1: Material characteristics for gas
EXPLOSIVE
ATMOSPHERES
and vapour classification –
Test methods
and
data
PART 20 MATERIAL CHARACTERISTICS
FOR
GAS
AND VAPOUR CLASSIFICATION
Section 1 Test Methods and Data
1
Scope
This part of IEC 60079 provides guidance on classification of gases and vapours. It describes
a test method intended for the measurement of the maximum experimental safe gaps (MESG)
for gas- or vapour-air mixtures under normal conditions of temperature 1 and pressure so as to
permit the selection of an appropriate group of equipment. The method does not take into
account the possible effects of obstacles on the safe gaps 2. This standard describes also a
test method intended for use in the determination of the auto-ignition temperature of a
chemically pure vapour or gas in air at atmospheric pressure.
The tabulated values of chemical and engineering properties of substances are provided to
assist engineers in their selection of equipment to be used in hazardous areas. It is hoped to
publish further data from time to time, as the results of tests made in several countries
become available.
The scope of these data has been selected with particular reference to the use of equipment
in hazardous areas, and notice has been taken of standard measurement methods.
NOTE 1 The data in this standard have been taken from a number of references which are given in the
bibliography.
NOTE 2 Some variations in the data may appear when references are compared, but usually the discrepancy is
sufficiently small to be of no importance in the selection of equipment.
2
Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 60079-11, Explosive atmospheres – Part 11: Equipment protection by intrinsic safety "i"
IEC 60079-14, Explosive atmospheres – Part 14: Electrical installations design, selection and
erection
3
Terms and definitions
For the purposes of this document, the following terms and definitions apply.
—————————
1
An exception is made for substances with vapour pressures which are too low to permit mixtures of the required
concentrations to be prepared at normal ambient temperatures. For these substances, a temperature 5 K above that
needed to give the necessary vapour pressure or 50 K above the flash point is used.
2
The design of the test apparatus for safe gap determination, other than that used for selecting the appropriate group of
enclosure for a particular gas, may need to be different to the one described in this standard. For example, the volume of
the enclosure, flange width, gas concentrations and the distance between the flanges and any external wall or obstruction
may have to be varied. As the design depends on the particular investigation which is to be undertaken, it is impracticable to
recommend specific design requirements, but for most applications the general principles and precautions indicated in the
clauses of this standard will still apply.
1
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
–7–
NOTE For the definitions of any other terms, particularly those of a more general nature, reference should be
made to IEC 60050(426) or other appropriate parts of the IEV (International Electrotechnical Vocabulary).
3.1
ignition by hot surface (auto-ignition)
a reaction in the test flask described in 7.2.2 which is evidenced by a clearly perceptible flame
and/or explosion, and for which the ignition delay time does not exceed 5 min
3.2
ignition delay time
the period of time between the introduction of the ignition source and the actual ignition
3.3
auto-ignition temperature
AIT
lowest temperature (of a hot surface) at which under specified test conditions an ignition of a
flammable gas or vapour in mixture with air or air/inert gas occurs
3.4
maximum experimental safe gap
MESG
maximum gap between the two parts of the interior chamber which, under the test conditions
specified below, prevents ignition of the external gas mixture through a 25 mm long flame
path when the internal mixture is ignited, for all concentrations of the tested gas or vapour in
air
3.5
minimum igniting current
MIC
minimum current in resistive or inductive circuits that causes the ignition of the explosive test
mixture in the spark-test apparatus according to IEC 60079-11
4
4.1
Classification of gases and vapours
General
Gases and vapours can be classified according to the group or sub-group of equipment
required for use in the particular gas or vapour atmosphere.
The general principles used to establish the lists of gases and vapours in the table of Annex B
are given below.
4.2
Classification according to the maximum experimental safe gaps (MESG)
Gases and vapours may be classified according to their maximum experimental safe gaps
(MESG) into the groups I, IIA, IIB and IIC.
NOTE The standard method for determining MESG should be the vessel described in 6.2, but where
determinations have been undertaken only in an 8 l spherical vessel with ignition close to the flange gap these can
be accepted provisionally.
The groups for equipment for explosive gas atmospheres are:
Group I:
equipment for mines susceptible to firedamp.
Group II:
equipment for places with an explosive gas atmosphere other than mines
susceptible to firedamp.
Group II equipment is subdivided and, for the purpose of classification of gases and vapours,
the MESG limits are:
2
IS/IEC 60079-20-1 : 2010
–8–
Group IIA:
MESG ≥ 0,9 mm.
Group IIB:
0,5 mm  MESG  0,9 mm.
Group IIC:
MESG  0,5 mm.
NOTE 1
60079-20-1  IEC:2010
For gases and highly volatile liquids the MESG is determined at 20 °C.
NOTE 2 If it was necessary to do the MESG determination at temperatures higher than ambient temperature a
temperature 5 K above that needed to give the necessary vapour pressure or 50 K above the flash point is used
and this value of MESG is given in the table and the classification of the equipment group is based on this result.
4.3
Classification according to the minimum igniting currents (MIC)
Gases and vapours may be classified according to the ratio of their minimum igniting currents
(MIC) with the ignition current of laboratory methane. The standard method of determining
MIC ratios shall be with the apparatus described in IEC 60079-11, but where determinations
have been undertaken in other apparatus these can be accepted provisionally.
Group II equipment is subdivided and, for the purpose of classification of gases and vapours,
the MIC ratios are:
Group IIA:
MIC  0,8.
Group IIB:
0,45  MIC  0,8.
Group IIC:
MIC  0,45.
4.4
Classification according to MESG and MIC
For most gases and vapours, it is sufficient to make only one determination of either MESG or
MIC ratio to classify the gas or vapour.
One determination is adequate when:
Group IIA:
MESG ≥ 0,9 mm, or MIC  0,9;
Group IIB:
0,55 mm  MESG  0,9 mm, or 0,5  MIC  0,8;
Group IIC:
MESG  0,5 mm, or MIC  0,45.
Determination of both the MESG and MIC ratio is required when:
for IIA:
0,8  MIC  0,9 need to confirm by MESG;
for IIB:
0,45  MIC  0,5 need to confirm by MESG;
for IIC:
0,5  MESG  0,55 need to confirm by MIC.
4.5
Classification according to a similarity of chemical structure
When a gas or vapour is a member of an homologous series of compounds, the classification
of the gas or vapour can provisionally be inferred from the data of the other members of the
series with lower molecular weights. However, it is best to run the test if it is possible.
4.6
Classification of mixtures of gases
Mixtures of gases should generally be allocated to a group only after a special determination
of MESG or MIC ratio. One method to estimate the group is to determine the MESG of the
mixture by applying a form of Le Châtelier relationship:
3
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
–9–
MESGmix =
1
⎛
X
⎞
i
⎟
∑ ⎜⎜⎝ MESG
⎟
i ⎠
i
This method should not be applied to mixtures and/or streams that have:
a) acetylene or its equivalent hazard;
b) oxygen or other strong oxidizer as one of the components;
c) large concentrations (over 5 %) of carbon monoxide. Because unrealistically high MESG
values may result, caution should be exercised with two component mixtures where one of
the components is an inert, such as nitrogen.
For mixtures containing an inert such as nitrogen in concentrations less than 5 % by volume,
use an MESG of infinity. For mixtures containing an inert such as nitrogen in concentrations
5 % and greater by volume, use an MESG of 2.
An alternate method that includes stoichiometric ratios is presented in the paper by Brandes
and Redeker.
5
Data for flammable gases and vapours, relating to the use of equipment
5.1
5.1.1
Determination of the properties
General
The compounds listed in this standard are in accordance with Clause 4, or have physical
properties similar to those of other compounds in that list.
5.1.2
Equipment group
The groups are the result of MESG or MIC ratio determination except where there is no value
listed for MESG or MIC ratio. For these, the group is based on chemical similarity (see
Clause 4).
NOTE If it was necessary to do the MESG determination at temperatures higher than ambient temperature a
temperature 5 K above that needed to give the necessary vapour pressure or 50 K above the Flash Point is used
and this value of MESG is given in the table of Annex B and the classification of the equipment group is based on
this result.
5.1.3
Flammable limits
Determinations have been made by a number of different methods, but the preferred method
is with a low energy ignition at the bottom of a vertical tube. The values (in percentage by
volume and mass per volume) are listed in the table of Annex B.
If the flash point is high, the compound does not form a flammable vapour air/mixture at
normal ambient temperature. Where flammability data are presented for such compounds the
determinations have been made at a temperature sufficiently elevated to allow the vapour to
form a flammable mixture with air.
5.1.4
Flash point FP
The value given in the table of Annex B is the “closed cup” measurement. When this data was
not available the “open cup” value is quoted. The symbol < (less than), indicates that the flash
point is below the value (in degree Celsius) stated, this probably being the limit of the
apparatus used.
4
IS/IEC 60079-20-1 : 2010
– 10 –
5.1.5
60079-20-1  IEC:2010
Temperature class
The temperature class of a gas or vapour is given according IEC 60079-14 in the following
table:
Table 1 – Classification of temperature class and range of auto-ignition temperatures
Range of auto-ignition temperature
(AIT)
Temperature class
°C
T1
> 450
T2
300  AIT  450
T3
200  AIT  300
T4
135  AIT  200
T5
100  AIT  135
T6
5.1.6
85  AIT  100
Minimum igniting current (MIC)
The apparatus for the determination of minimum igniting current is defined in IEC 60079-11.
The test apparatus shall be operated in a 24 V d.c. circuit containing a (95  5) mH air-cored
coil. The current in this circuit is varied until ignition of the most easily ignited concentration of
the specific gas or vapour in air is obtained.
5.1.7
Auto-ignition temperature
The value of auto-ignition temperature depends on the method of testing. The preferred
method and data obtained is given in Clause 7 and in Annex B.
If the compound is not included in these data, the data obtained in similar apparatus, such as
the apparatus described by ASTM International standard (ASTM E659), is listed 3.
5.2
5.2.1
Properties of particular gases and vapours
Coke oven gas
Coke oven gas is a mixture of hydrogen, carbon monoxide and methane. If the sum of the
concentrations (vol %) of hydrogen and carbon monoxide is less than 75 % of the total,
flameproof equipment of Group IIB is recommended, otherwise equipment of Group IIC is
recommended.
5.2.2
Ethyl nitrite
The auto-ignition temperature of ethyl nitrite is 95 °C, above which the gas suffers explosive
decomposition.
NOTE
5.2.3
Ethyl nitrite should not be confused with its isomer, nitroethane.
MESG of carbon monoxide
The MESG for carbon monoxide relates to a mixture with air saturated with moisture at normal
ambient temperature. This determination indicates the use of Group IIB equipment in the
presence of carbon monoxide. A larger MESG may be observed with less moisture. The
lowest MESG (0,65 mm) is observed for a mixture of CO/H 2 O near 7: molar ratio. Small
—————————
3
Results from using the apparatus described in ASTM D2155 (now replaced by ASTM E659) were reported by C.J. Hilado
and S.W. Clark. The apparatus is similar to the one used by Zabetakis. If there is no determination by either the IEC
apparatus, nor similar apparatus, the lowest value obtained in other apparatus is listed. A more comprehensive list of data
for auto ignition temperature, with the reference to sources, is given by Hilado and Clark.
5
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
– 11 –
quantities of hydrocarbon in the carbon monoxide/air mixture have a similar effect in reducing
the MESG so that Group IIB equipment is required.
5.2.4
Methane, Group IIA
Industrial methane, such as natural gas, is classified as Group IIA, provided it does not
contain more than 25 % (V/V) of hydrogen. A mixture of methane with other compounds from
Group IIA, in any proportion is classified as Group IIA.
6
Method of test for the maximum experimental safe gap
6.1
Outline of method
The interior and exterior chambers of the test apparatus are filled with a known mixture of the
gas or vapour in air, under normal conditions of temperature 4 and pressure (20 °C, 100 kPa)
and with the circumferential gap between the two chambers accurately adjusted to the
desired value. The internal mixture is ignited and the flame propagation, if any, is observed
through the windows in the external chamber. The maximum experimental safe gap for the
gas or vapour is determined by adjusting the gap in small steps to find the maximum value
of gap which prevents ignition of the external mixture, for any concentration of the gas or
vapour in air.
6.2
6.2.1
Test apparatus
General
The apparatus is described in the following subclauses and is shown schematically in
Figure 1 It is also possible to use an automatic set-up when it is proven that the same results
are obtained as with a manual apparatus.
c
d
b
i
a
g
f
h
+
–
e
Key
a
interior spherical chamber
e
b
exterior cylindrical enclosure
f
observation windows
c
adjustable part
g
spark electrode
d
outlet of mixture
h
i
inlet of mixture
lower gap plate, fixed
upper gap plate, adjustable
Figure 1 – Test apparatus
—————————
4
An exception is made for substances with vapour pressures which are too low to permit mixtures of the required
concentrations to be prepared at normal ambient temperatures. For these substances, a temperature 5 K above that
needed to give the necessary vapour pressure or 50 K above the flash point is used.
6
IS/IEC 60079-20-1 : 2010
– 12 –
6.2.2
60079-20-1 © IEC:2010
Mechanical strength
The whole apparatus is constructed to withstand a maximum pressure of 1 500 kPa without
significant expansion of the gap, so that no such expansion of the gap will occur during an
explosion.
6.2.3
Interior chamber
The interior chamber "a" is a sphere with a volume measuring 20 cm 3 .
6.2.4
Exterior chamber
The exterior cylindrical enclosure "b" has a diameter of 200 mm and a height of 75 mm.
6.2.5
Gap adjustment
The two parts "i" and "h" of the internal chamber are so arranged that an adjustable 25 mm
gap can be set up between the plane parallel faces of the opposing rims. The exact width of
the gap can be adjusted by means of the micrometer (part "c").
6.2.6
Injection of mixture
The internal chamber is filled with the gas-air or vapour-air mixture through an inlet ("e"). The
exterior chamber is filled with the mixture via the gap. The inlet and outlet should be protected
by flame arresters.
6.2.7
Source of ignition
The electrodes "g" shall be mounted in such a way that the spark path is perpendicular to the
plane of the joint and should be symmetrically placed on both sides of the plane.
6.2.8
Materials of test apparatus
The main parts of the test apparatus, and in particular the walls and flanges of the inner
chamber and the electrodes of the spark-gap, are normally of stainless steel. Other materials
may have to be used with some gases or vapours, however, in order to avoid corrosion or
other chemical affects. Light alloys should not be used for the spark-gap electrodes.
6.3
6.3.1
Procedure
Preparation of gas mixtures
As the consistency of the mixture concentration, for a particular test series, has a pronounced
effect on the dispersion of the test results, it has to be carefully controlled. The flow of the
mixture through the chamber is therefore maintained until the inlet and outlet concentrations
are the same, or a method of equivalent reliability must be used.
The moisture content of the air used for the preparation of the mixture should not exceed
0,2 % by volume (10 % relative humidity).
6.3.2
Temperature and pressure
The tests are made at an ambient temperature of (20 ± 5) °C, except where otherwise
5
permitted . The pressure within the test apparatus is adjusted to (1 ± 0,01) kPa.
—————————
5
An exception is made for substances with vapour pressures which are too low to permit mixtures of the required
concentrations to be prepared at normal ambient temperatures. For these substances, a temperature 5 K above that
needed to give the necessary vapour pressure or 50 K above the flash point is used.
7
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
6.3.3
– 13 –
Gap adjustment
The gap is first reduced to a very small value and examined to ensure that the flanges are
parallel. The zero setting of the gap is checked but the value of torque applied should be low
(e.g. a force of about 10 –2 N applied at the circumference of the micrometer head).
6.3.4
Ignition
The internal mixture is ignited by an electrical spark with a voltage of approximately 15 kV.
6.3.5
Observation of the ignition process
Ignition of the internal mixture is confirmed by observation through the gap when the test is
made. If no internal ignition occurs, the test is invalid. Ignition of the mixture in the external
chamber is taken to occur when the whole volume of the chamber is seen to be filled by the
flame of the explosion.
6.4
6.4.1
Determination of maximum experimental safe gap (MESG)
Preliminary tests
With a defined mixture of the combustible vapour or gas with air, two ignition tests are carried
out on a number of gaps, at 0,02 mm intervals, covering the range from a safe gap to an
unsafe gap. From the results, the highest gap, g 0 , at which there is 0 % probability of ignition,
and the lowest gap, g 100 , giving 100 % probability of ignition, are determined.
The test series is repeated with a range of mixture concentrations, and the variation of the
gap g 0 and g 100 are obtained. The most dangerous mixture is that for which these values are
a minimum.
6.4.2
Confirmatory tests
The results are confirmed by repeating the tests, with 10 explosion tests for each step of gap
adjustment, at a number of concentrations in the neighbourhood of the most dangerous
mixture found in the preliminary series. The minimum values of g 0 and g 100 are then
determined.
6.4.3
Reproducibility of maximum experimental safe gaps
The highest acceptable difference between the values of (g 0 ) min obtained from different test
series is 0,04 mm.
If all values are within this range, the tabulated value of MESG will be equal to (g 0 ) min where
(g 100 ) min – (g 0 ) min is the smallest. For most substances, this difference will lie within one step
of gap adjustment, i.e. within 0,02 mm.
If the difference between the values of (g 0 ) min taken from different test series exceeds
0,04 mm, the laboratories concerned should repeat their tests after confirming that the test
apparatus is able to reproduce the tabulated value for hydrogen.
6.4.4
Tabulated values
The values of the MESG, the difference (g 100 ) min – (g 0 ) min and the most igniting concentration
determined in 6.4.1 are tabulated below in Annex B.
The value of the MESG is used to determine the group. The value (g 100 ) min – (g 0 ) min indicates
the accuracy of the tabulated value of the MESG.
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– 14 –
6.5
Verification of the MESG determination method
This verification procedure shall be used for a new apparatus as well as for checking the
performance of existing apparatus. Existing apparatuses shall be checked at least every
12 months or whenever parts of the apparatus have been changed or renewed. For a new
apparatus carry out experiments according to the instructions given in 6.3 with all the
substances listed in Table 2. When renewing the test vessel it is in general sufficient to carry
out the check test with methane and hydrogen.
Verification will be confirmed if the values obtained do not deviate more than ± 0,02 mm from
the values given in Table 2. The values are valid for an ambient temperature of (20 ± 2) °C
and an ambient pressure of (1,013 ± 0,02) kPa.
If the results obtained by the test apparatus meet the required verification performance,
record this fact in a permanent report.
Table 2 – Values for verification of the apparatus
Flammable
substance
concentration range
MESG
vol%
mm
Purity of
substances
Methane
8,0 – 10,0
1,16
5.5
Propane
3,5 – 4,5
0,90
2.5
Hydrogen
29,0 – 31,0
0,30
5.0
If the results obtained by the test apparatus do not meet the required verification
performance, check the apparatus, especially the plane parallelism of the faces of the inner
volume. The parallel offset of the faces has to be less than 0,01 mm for distances between
0,3 mm and 1,5 mm. If appropriate verify again.
7
Method of test for auto-ignition temperature
7.1
Outline of method
A known volume of the product to be tested is injected into a heated open 200 ml Erlenmeyer
flask containing air. The contents of the flask are observed in a darkened room until ignition
occurs. The test is repeated with different flask temperatures and different sample volumes.
The lowest flask temperature at which ignition occurs is taken to be the auto-ignition
temperature of the product in air at atmospheric pressure.
7.2
7.2.1
Apparatus
General
Historically there haven been used two apparatus, the IEC apparatus described in A.1 and the
DIN apparatus described in A.2. The difference is that the IEC apparatus has an additional
heater at the neck of the flask. Normally there is no impact on the test results. The principle of
the test apparatus is described in the following subclauses. It is also possible to use an
automatic set-up.
7.2.2
Test flask
The test flask shall be a 200 ml Erlenmeyer flask of borosilicate glass. A chemically clean
flask shall be used for tests on each product and for the final series of tests.
9
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60079-20-1 © IEC:2010
– 15 –
Where the auto-ignition temperature of the test sample exceeds the softening point of a
borosilicate glass flask, or where the sample would cause deterioration of such a flask, i.e. by
chemical attack, a quartz or metal flask may be used, provided this is declared in the test
report.
7.2.3
Furnace
The test flask shall be heated in an adequately uniform manner by a hot-air furnace.
Examples of furnaces suitable for this purpose are described in Annex A to this standard.
The test flask shall be deemed to be adequately uniformly heated and the position or
positions selected for temperature measurement shall be deemed to be satisfactory if the
measured auto-ignition temperatures of n-heptane, ethylene and acetone agree with the
specified values within the tolerances given in 7.5, when the test procedure of this standard is
followed. The samples used for these checks shall have a purity of not less than 99,9 %.
7.2.4
Thermocouples
One or more calibrated thermocouples of 0,8 mm maximum diameter shall be used to
determine the flask temperature. The thermocouple(s) shall be positioned at selected points
on the flask (see 7.2.3) and in intimate contact with its external surface.
7.2.5
Sampling syringes or pipettes
Liquid samples shall be introduced into the flask by means of either :
a) a 0,25 ml or 1 ml hypodermic syringe equipped with a stainless steel needle of 0,15 mm
maximum bore diameter, and calibrated in units not greater than 0,01 ml;
b) a calibrated 1 ml pipette allowing 1 ml of distilled water at room temperature to be
discharged in 35 to 40 droplets.
Gaseous samples shall be introduced by means of a 200 ml gas-tight calibrated glass syringe
fitted with a three-way stopcock and connecting tubes.
NOTE Precaution against flash-back should be taken. One method which has been used is illustrated
diagrammatically in Figure 10.
7.2.6
Timer
A timer subdivided in one-second intervals shall be used to determine the auto ignition delay
time.
7.2.7
Mirror
It is recommended that a mirror should be suitably positioned approximately 250 mm above
the flask to permit convenient observation of the interior of the flask.
7.3
Procedure
The temperature of the furnace shall first be adjusted to give the flask the desired uniform
temperature.
7.3.1
Sample injection
When testing samples with boiling points at or near room temperature care shall be taken to
maintain the temperature of the sample injection system at a value which will ensure that no
change of state occurs before the sample is injected into the test flask.
10
IS/IEC 60079-20-1 : 2010
– 16 –
7.3.1.1
60079-20-1 © IEC:2010
Liquid samples
The required volume of the sample to be tested shall be injected into the test flask with the
hypodermic syringe or pipette as appropriate. The sample shall be injected as droplets into
the centre of the flask, as quickly as possible, so that the operation is completed in 2 s. The
syringe or pipette shall then be quickly withdrawn. Care shall be taken to avoid wetting the
walls of the flask during injection.
7.3.1.2
Gaseous samples
Gaseous samples shall be injected by first filling the gas-tight syringe and its associated
tubes, making certain by repeated flushing that the system is completely filled with the gas to
be tested. The required volume shall then be injected into the test flask at a rate of about
25 ml per second, keeping the rate of injection as constant as possible. The filling tube shall
then be quickly withdrawn from the flask.
7.3.1.3
Initial sample volume
Suitable sample volumes for the initial tests are 0,07 ml for liquid samples and 20 ml for
gaseous samples.
7.3.2
Observations
The timer shall be started as soon as the sample has been completely injected into the test
flask and stopped immediately when a flame is observed. The temperature and auto-ignition
delay time shall be recorded. If no flame is observed, the timer shall be stopped after 5 min
and the test discontinued.
7.3.3
Subsequent tests
The tests shall be repeated at different temperatures and with different sample volumes until
the minimum value of the auto-ignition temperature is obtained. Between each test the flask
shall be flushed completely with clean dry air. After flushing, a sufficient time interval shall be
allowed to ensure that the flask temperature is stabilized at the desired test temperature
before the next sample is injected. The final tests shall be made in temperature steps of 2 K
until the lowest temperature at which auto-ignition occurs has been obtained.
7.3.4
Confirmatory tests
The final tests shall be repeated five times.
7.4
Auto-ignition temperature
The lowest temperature at which auto-ignition occurs in the tests described in 7.3 shall be
recorded as the auto-ignition temperature, provided that the results satisfy the validity
requirements of 7.5. The corresponding auto ignition delay time and the barometric pressure
shall be recorded.
7.5
7.5.1
Validity of results
Repeatability
Results of repeated tests obtained by the same operator and fixture shall be considered
suspect if they differ by more than 2 %.
7.5.2
Reproducibility
The averages of results obtained in different laboratories shall be considered suspect if they
differ by more than 5 %.
11
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
– 17 –
NOTE The tolerances stated above for repeatability and reproducibility are tentative values pending the
accumulation of more information.
7.6
Data
A record shall be kept of the name, source and physical properties of the product, test
number, date of test, ambient temperature, pressure, quantity of sample used, auto-ignition
temperature and auto-ignition delay time.
7.7
Verification of the auto-ignition temperature determination method
This verification procedure shall be used for a new apparatus as well as for checking the
performance of existing apparatus. Existing apparatus have to be checked at least every
12 months or whenever parts of the apparatus have been changed or renewed. For a new
apparatus carry out experiments according to the instructions given in 7.3 of this standard
with all the substances listed in Table 3, starting the tests at the given starting temperature.
When renewing the test vessel it is in general sufficient to carry out the check test with only
one of the substances chosen according to the temperature range expected. The purity of the
substances ethylene and acetone expressed by mol fraction shall be 99,8 % or better, that
one of n-heptane shall be 99,3 % or better.
The values given in Table 3 are the respective mean values of the lowest temperatures
reached by interlaboratoy tests.
Verification will be confirmed if the values obtained for the lowest temperature for ignition do
not deviate more than ±1,5 % from the values given in Table 3. The values are valid for an
ambient temperature of (20 ± 2) °C and an ambient pressure of (1,013 ± 0,02) kPa.
Table 3 – Values for verification of the apparatus
Flammable
substance
Starting temperature
Measured lowest
temperature for ignition
°C
°C
Acetone
534
539
Ethylene
455
436
n-Heptane
240
221
If the results obtained by the test apparatus meet the required verification performance,
record this fact in a permanent report.
If the results obtained by the test apparatus do not meet the required verification
performance, check the test vessel and the hot-air oven. If appropriate change the test vessel
and verify again.
12
IS/IEC 60079-20-1 : 2010
– 18 –
60079-20-1 © IEC:2010
Annex A
(normative)
Furnaces of test apparatus for the tests
of auto-ignition temperature
Furnaces constructed in accordance with Clauses A.1 and A.2 below are suitable for the tests
described in Clause 7.
A.1
The furnace is shown schematically in Figure A.1 to Figure A.5.
It consists of a refractory cylinder, 127 mm in internal diameter and 127 mm long,
circumferentially wound with a 1 200 W electric heater uniformly spaced along its length; a
suitable refractory insulating material and retaining shell; a cover ring and flask guide ring
made from a board of refractory material; a 300 W neck heater and a 300 W base heater.
Three thermocouples are used, positioned 25 mm and 50 mm below the bottom of the neck
heater, and under the base of the flask near its centre.
The temperature measured by each of the thermocouples can be adjusted to within ±1 °C of
the desired test temperature by the use of independently variable controls for each of the
three heaters.
A.2 The furnace is shown schematically in Figure A.6 to Figure A.8. It consists of a
resistance-heated furnace of approximately 1300 W, maximum heating current 6 A.
The heating wire, diameter 1,2 mm, length 35,8 m, of (Cr/Al 30/5) alloy is circumferentially
wound round the full length of a ceramic cylinder, with a turn spacing of 1,2 mm. The heater is
fixed in position with high temperature mastic and enclosed by a thermally insulating layer of
aluminium oxide powder 20 mm thick. A stainless steel cylinder is inserted in the ceramic
body with the smallest possible clearance. The lid, covering the whole furnace, is also of
stainless steel and holds the flask within the furnace. For this purpose, the lid consists of a
top disk, a split insulating gasket and a split lower disk. The neck of the flask is fitted into the
lid with heat insulating packing and is held by the segments of the split gasket and the lower
disk, which are squeezed against it and fixed to the top disk by means of two ring nuts.
The heater may be operated on a.c. or d.c. with appropriate means of voltage control. The
maximum heating current of about 6 A should be used to attain the temperature required for
the preliminary tests. If an automatic temperature control system is used, the heating and
cooling periods should be of equal length and if possible only a part of the heater current
should be so controlled.
Measurement thermocouples are positioned on the outer-surface of the wall of the flask,
25 mm ± 2 mm from its base, and at the centre of the under-surface of the base.
13
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
– 19 –
Dimensions in millimetres
Cover ring
Neck heater
Main heater
127
10
Board of refractory material
127 mm
28,5
200 ml Erlenmeyer flask
Ceramic support
A
210
A
∅7
Retaining cylinder
Electric crucible furnace
Base heater
10
Thermocouples
To
potentiometers
Figure A.1 – Test apparatus: assembly
14
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
– 20 –
Dimensions in millimetres
318
Wiring and thermocouple
entry space
Figure A.2 – Section A-A (flask omitted)
Dimensions in millimetres
Dotted line indicates
method of wiring
Grooves cut approx.
1,5 mm wide, 1,5 mm deep
on outside diameter of disk.
Nickel-chrome wire,
length approx. 2,5 m, diameter 0,4 mm
124
51
12,7
Figure A.3 – Base heater (board made of refractory material)
15
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
– 21 –
Dimensions in millimetres
A
3 holes drilled through
∅7,5
∅100
∅82
∅116
120°
Plat/Flat 51
120°
12,7
A
Section A-A
Figure A.4 – Flask guide ring (board made of refractory material)
16
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
– 22 –
Dimensions in millimetres
6,4
Grooves cut approx. 1,5 mm wide, 1,5 mm deep
on outside and inside diameter of ring.
Nickel-chrome wire, length approx. 4,5 m, diameter 0,4 mm
∅124
∅38
Dotted line indicates
method of wiring
12,7
Figure A.5 – Neck heater (board made of refractory material)
17
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
– 23 –
Dimensions in millimetres
Thermocouples
Upper part of lid
Collets
Insulating ring
Lower part of lid
Heat insulation
150
Thermal insulation
Heater
150
Ceramic tube
Steel cylinder
210
∅5
25 ± 2
High temperature mastic
3
Test points
33
∅4
Heater coupling 220 V
Insulating disk
Metal bottom
Thermocouple
∅86
∅114
∅115 + 4,4
∅135 ± 2,5
∅175
∅182
Figure A.6 – Furnace
18
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
– 24 –
I
2
SW17
M12
Figure
12
5
∅30
3,5
Dimensions in millimetres
A.7 – Lid of steel cylinder
∅40
M10
∅114
29
24
19
8,4
60°
14
10
1,5
38
34°
110
M12
40
A
B
44
32
∅6
4,3
M12
∅16
Upper part of lid
Fittings for thermocouple
19
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
– 25 –
Dimensions in millimetres
10,5
38
34°
40
16
38
57
Lower two-piece
part of lid
5
20
M8
∅114
Polished
Figure A.8 – Lid of steel cylinder
Sintered glass disks about 10 mm × 3 mm
1 mm thick plastic foil
Gas-tight syringe
Flame trap
Antichamber
Inflatable rubber reservoir
Figure A.9 – Injection of gaseous sample
20
IS/IEC 60079-20-1 : 2010
– 26 –
60079-20-1 © IEC:2010
Annex B
(informative)
Tabulated values
The classification in this standard provides guidance on the group of equipment to be used in
a particular gas/air or vapour/air mixture to avoid the danger of an explosion from an ignition
source. It should be noted that some materials listed, for example ethyl nitrate, are relatively
unstable and may be prone to spontaneous decomposition.
The list of gases and vapours in the tables should not be considered to be comprehensive.
Users of the data in this standard should be aware that all its data are the result of
experimental determinations, and as such are influenced by variation in experimental
apparatus and procedures, and in the accuracy of instrumentation. In particular, some of the
data have been determined at temperatures above ambient temperature, so that the vapour is
within the flammable range. Variation in the temperature for the determination would be
expected to influence the result of the determination; for example: lower flammability limits
and maximum experimental safe gap decrease with increasing temperature and/or pressure;
upper flammability limits increase with increasing temperature and/or pressure. Data are
subject to revision and, where more recent information is required, the use of a maintained
database 6 is recommended.
The following values are tabulated:
a) CAS-number
CAS: chemical abstract system
b) English name and
(= synonyms)
Formula
c) Relative density (air = 1)
d) Melting point
e) Boiling point
f)
Flash point
g) Flammability limits
h) Ignition temperature
i)
Most incentive mixture
j)
MESG
k) g 100 – g 0
l) MIC ratio
m) Temperature class
n) Equipment group
o) Method of classification
The significance of the letter against each gas is as follows:
a=
classified according to MESG determination.
b=
classified according to MIC ratio.
c=
both MESG and MIC ratio have been determined.
d=
classified according to similarity of chemical structure (provisional
classification).
—————————
6
For information on the availability of maintained databases refer to Bibliography.
21
CASNo.
22
64-17-5
62-53-3
CH 3 CH 2 OH
(= Ethyl alcohol)
(= Alcohol)
Ethanol
C 6 H 5 NH 2
(= Phenylamine)
(= Aniline)
(= Aminobenzene)
Benzenamine
(CH 3 CH 2 ) 2 O
1,59
3,22
-114
-6
-116
78
184
35
63
12
75
–45
–18
3,1
1,2
1,7
2,4
1,61
27,7
at
100
°C
19,0
at
60
°C
11,0
39,2
20,0
59
47
50
60
67
532
at
100
°C
425
1210
490
400
615
175
240
180
6,5
3,47
Most inc.
mixture
[Vol.-%]
(= Ether)
2,55
-58
<–13
424
0,89
0,87
0,85
1,06
0,57
0,02
0,01
g 100 – g 0
[mm]
(= Ethyl oxide)
2,07
84
920
0,88
0,88
MIC ratio
(= Ethyl ether)
(= Diethyl oxide)
(= Diethyl ether)
1,1´-Oxybisethane
(CH 3 ) 2 NNH 2
1,1-Dimethylhydrazine
-140
88
T2
T1
T4
T3
T4
T2
IIB
IIA
IIB
IIB
IIA
IIB
c
d
a
a
a
a
60079-20-1 © IEC:2010
60-29-7
57-14-7
Name
formula
3,5
Upper
flam. limit
[Vol.-%]
73,0
Lower
flam. limit
[g/m 3 ]
(CH 3 ) 2 NCH 2 N(CH 3 ) 2
Lower
flam. limit
[Vol.-%]
7,0
Upper
flam. limit
[g/m 3 ]
N,N,N',N'-Tetramethyl methanediamine
Flash
point
[°C]
60
Auto ign.
temp.
[°C]
51-80-9
Boiling
point
[°C]
-6
MESG
[mm]
HCHO
Melting
point
[°C]
-92
Temp.
class
(= Methylene oxide)
Relative
density
(air = 1)
1,03
Equip.
group
(= Methyl aldehyde)
(= Methanal)
Method of
class.
50-00-0
Formaldehyde
IS/IEC 60079-20-1 : 2010
– 27 –
CASNo.
23
67-64-1
(CH 3 ) 2 CO
(= Dimethyl ketone)
(= Acetone)
2-Propanone
(CH 3 ) 2 CHOH
(= Propan-2-ol)
(= Isopropyl alcohol)
(= Isopropanol)
(= Dimethyl carbinol)
2-Propanol
CH 3 OH
(= Methyl alcohol)
2,00
2,07
1,11
5,31
-95
-88
-98
-25
56
83
65
208
118
<–20
12
9
104
39
2,5
2,0
6,0
4,0
14,3
at
100
°C
12,7
50,0
at
100
°C
36,0
at
60
°C
19,9
60
50
73
100
345
at
100
°C
320
665
at
100
°C
428
1049
539
399
440
360
510
525
5,9
11,0
Most inc.
mixture
[Vol.-%]
(= Carbinol)
Methanol
(CH 3 CH 2 ) 2 SO 4
(= Diethyl sulphate)
Sulfuric acid diethyl ester
CH 3 COOH
17
190
1,01
1,00
0,92
1,11
1,76
1,86
0,03
g 100 – g 0
[mm]
67-63-0
67-56-1
64-67-5
Name
formula
2,07
Upper
flam. limit
[Vol.-%]
57,0
Lower
flam. limit
[g/m 3 ]
(= Glacial acetic acid)
Lower
flam. limit
[Vol.-%]
18,0
Upper
flam. limit
[g/m 3 ]
(= Ethanoic acid)
Flash
point
[°C]
42
1,00
0,82
2,67
MIC ratio
64-19-7
Boiling
point
[°C]
101
Auto ign.
temp.
[°C]
Acetic acid
Melting
point
[°C]
8
MESG
[mm]
HCOOH
Relative
density
(air = 1)
1,60
T1
T2
T2
T2
T1
T1
Temp.
class
(= Methanoic acid)
IIA
IIA
IIA
IIA
IIA
IIA
Equip.
group
(= Hydrogen carboxylic acid)
c
a
c
a
b
a
Method of
class.
64-18-6
Formic Acid
– 28 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
CASNo.
24
C6H6
(= Phenyl hydride)
Benzene
CH 3 (CH 2 ) 3 CH 2 OH
(= n-Pentanol)
(= n-Pentyl alcohol)
(= Pentan-1-ol)
(= n-Butyl carbinol)
2,70
3,03
6
-78
-89
80
138
118
–11
42
35
1,2
1,06
1,4
2,1
8,6
10,5
12,0
17,5
39
36
52
52
280
385
372
353
498
320
343
385
440
100
mg/l
115
mg/l
0,99
0,99
0,91
0,89
1,08
1,00
MIC ratio
71-43-2
71-41-0
(=n-Amyl alcohol)
1-Pentanol
CH 3 (CH 2 ) 2 CH 2 OH
(= n-Propyl carbinol)
2,55
15
500
T1
T2
T2
T2
T2
IIA
IIA
IIA
IIB
IIA
c
a
a
a
d
60079-20-1 © IEC:2010
(= 1-Hydroxybutane)
(= Butyl alcohol)
(= n-Butanol)
97
55
Most inc.
mixture
[Vol.-%]
71-36-3
(=n-Butyl alcohol)
1-Butanol
CH 3 CH 2 CH 2 OH
-126
16,0
Upper
flam. limit
[Vol.-%]
2,07
Lower
flam. limit
[Vol.-%]
1,8
Lower
flam. limit
[g/m 3 ]
(= n-Propyl alcohol)
Flash
point
[°C]
58
Upper
flam. limit
[g/m 3 ]
(= Propan-1-ol)
Boiling
point
[°C]
153
Auto ign.
temp.
[°C]
71-23-8
Melting
point
[°C]
-61
MESG
[mm]
1-Propanol
Relative
density
(air = 1)
2,51
Temp.
class
HCON(CH 3 ) 2
Equip.
group
(= Dimethylformamide)
Method of
class.
68-12-2
Name
formula
N,N-Dimethyl formamide
IS/IEC 60079-20-1 : 2010
– 29 –
g 100 – g 0
[mm]
CASNo.
25
74-89-5
74-87-3
74-86-2
74-85-1
Name
formula
CH 3 NH 2
(= Carbinamine)
(= Aminomethane)
Methylamine
CH 3 Cl
(= Monochloromethane)
(= Chloromethane)
Methyl chloride
CH≡CH
(= Ethyne)
(=Acetylene)
Ethine
CH 2 =CH 2
(= Ethylene)
Ethene
CH 3 CH 3
Relative
density
(air = 1)
Ethane
1,00
1,78
0,90
0,97
1,04
Melting
point
[°C]
74-84-0
-92
-169
-183
Boiling
point
[°C]
0,55
-6
-24
-104
-86
Flash
point
[°C]
gas
gas
gas
gas
gas
gas
4,2
7,6
2,3
2,3
2,4
4,4
20,7
19,0
100
36,0
15,5
17,0
55
160
24
26
30
29
270
410
1092
423
194
113
430
625
305
440
515
595
600
8,5
6,5
5,9
8,2
Most inc.
mixture
[Vol.-%]
CH 4
Lower
flam. limit
[Vol.-%]
113
1,10
1,00
0,37
0,65
0,91
1,14
1,12
0,01
0,02
0,02
0,11
g 100 – g 0
[mm]
Methane (firedamp, see 5.2.4)
Upper
flam. limit
[Vol.-%]
74-82-8
Lower
flam. limit
[g/m 3 ]
29
Upper
flam. limit
[g/m 3 ]
17,0
Auto ign.
temp.
[°C]
4,4
MESG
[mm]
gas
0,28
0,53
0,82
1,00
MIC ratio
-162
T2
T1
T2
T2
T1
T1
T1
Temp.
class
-182
IIA
IIA
IIC
IIB
IIA
I
IIA
Equip.
group
CH 4
a
a
c
a
c
a
a
Method of
class.
Methane (see 5.2.4)
– 30 –
60079-20-1 © IEC:2010
IS/IEC 60079-20-1 : 2010
CASNo.
26
74-99-7
CH 3 C≡CH
(= Methylacetylen)
(= Allylene)
Propyne
CH 3 CH 2 CH 3
(= Propyl hydride)
(= Dimethyl methane)
Propane
CH 3 CH 2 Br
(= Monobromoethane)
(= Ethyl bromide)
1,38
1,56
3,75
-103
-188
-119
-126
-23
-42
38
6
gas
gas
gas
1,7
1,7
6,7
4,1
16,8
10,9
11,3
21,0
28
31
306
80
280
200
517
420
340
450
511
340
538
4,2
18,4
0,92
1,15
0,80
0,03
0,02
0,82
MIC ratio
74-98-6
74-96-4
Bromoethane
1,60
520
T2
T2
T1
T2
T1
IIB
IIA
IIA
IIA
IIB
d
c
d
a
a
60079-20-1 © IEC:2010
CH 3 SH
(= Methyl sulfhydrate)
60
Lower
flam. limit
[g/m 3 ]
(= Methyl mercaptan)
Upper
flam. limit
[Vol.-%]
46,0
Upper
flam. limit
[g/m 3 ]
74-93-1
Lower
flam. limit
[Vol.-%]
5,4
Auto ign.
temp.
[°C]
(= Mercaptomethane)
Flash
point
[°C]
<–20
Most inc.
mixture
[Vol.-%]
Methanethiol
Boiling
point
[°C]
26
MESG
[mm]
HCN
Melting
point
[°C]
-13
g 100 – g 0
[mm]
(= Prussic acid)
Relative
density
(air = 1)
0,90
Temp.
class
(= Methanenitrile)
Equip.
group
(= Hydrocyanic acid)
(= Formic anammonide)
Method of
class.
74-90-8
Name
formula
(= Hydrogen cyanide)
Hydrocyanic acid
IS/IEC 60079-20-1 : 2010
– 31 –
27
CH 3 CHO
(= Ethyl aldehyde)
(= Acetaldehyde)
(= Acetic aldehyde)
Ethanal
CH 3 CN
(= Methyl cyanide)
(= Ethyl nitrile)
(= Cyanomethane)
Acetonitrile
C 2 H 5 NH 2
(= Monoethylamine)
(= Aminoethane)
Ethylamine
CH 2 =CHCl
1,52
1,42
1,50
-123
-45
-92
-160
20
82
7
-14
–38
2
gas
gas
4,0
3,0
3,5
3,6
60,0
16,0
14,0
33,0
74
51
49
94
1108
275
260
610
413
155
523
385
415
510
7,2
7,3
0,92
1,50
1,20
0,99
0,05
0,04
0,98
MIC ratio
75-07-0
75-05-8
75-04-7
Name
formula
2,15
95
Most inc.
mixture
[Vol.-%]
(= Chloroethylene)
Upper
flam. limit
[Vol.-%]
15,4
MESG
[mm]
(= Vinyl Chloride)
Lower
flam. limit
[Vol.-%]
3,6
g 100 – g 0
[mm]
75-01-4
Flash
point
[°C]
gas
Lower
flam. limit
[g/m 3 ]
Chloroethene
Boiling
point
[°C]
12
Upper
flam. limit
[g/m 3 ]
CH 3 CH 2 Cl
Melting
point
[°C]
-139
Auto ign.
temp.
[°C]
(= Muriatic ether)
Relative
density
(air = 1)
2,22
T4
T1
T2
T2
T1
Temp.
class
(= Monochloroethane)
IIA
IIA
IIA
IIA
IIA
Equip.
group
(= Hydrochloric ether)
a
a
a
a
d
Method of
class.
75-00-3
CASNo.
(= Ethyl chloride)
Chloroethane
– 32 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
CASNo.
28
75-31-0
75-29-6
75-28-5
(CH 3 ) 2 CHNH 2
(= 1-methylethylamine)
(= 2-Aminopropane)
(= iso-Propylamine)
2-Propaneamine
(CH 3 ) 2 CHCl
2-Chloropropane
(CH 3 ) 2 CHCH 3
(= iso-Butane)
2-Methylpropane
.
CH 2 CH 2 O
(= Epoxyethan)
(= Ethylene oxide)
Oxirane
.
CH 2 CH 2 CH 2
(= Trimethylene)
2,03
2,70
2,00
1,52
1,45
-101
-117
-159
-123
-128
32
35
-12
20
-33
–24
–20
gas
gas
gas
–30
2,3
2,8
1,3
2,6
2,4
0,6
8,6
10,7
9,8
100
10,4
60,0
55
92
31
47
42
19
208
350
236
1848
183
1900
468
340
590
460
429
500
90
295
~8
8,5
1,05
1,23
0,95
0,59
0,91
0,34
0,90
0,02
0,02
0,47
0,84
0,39
0,9
T2
T1
T1
T2
T1
T6
T3
IIA
IIA
IIA
IIB
IIA
IIC
IIA
a
a
a
a
a
c
a
60079-20-1  IEC:2010
75-21-8
75-19-4
Cyclopropane
46
Lower
flam. limit
[g/m 3 ]
73
Upper
flam. limit
[g/m 3 ]
-112
Upper
flam. limit
[Vol.-%]
18,0
Auto ign.
temp.
[°C]
2,64
Lower
flam. limit
[Vol.-%]
2,8
Most inc.
mixture
[Vol.-%]
CS 2
Flash
point
[°C]
-48
g 100 – g 0
[mm]
Carbon Disulfide
Boiling
point
[°C]
35
MESG
[mm]
CH 3 CH 2 SH
Melting
point
[°C]
-148
MIC ratio
(= Mercaptoethane)
Relative
density
(air = 1)
2,11
Temp.
class
(= Ethyl sulfhydrate)
Equip.
group
75-15-0
Name
formula
(= Ethyl Mercaptan)
Method of
class.
75-08-1
Ethanethiol
IS/IEC 60079-20-1 : 2010
– 33 –
CASNo.
29
75-83-2
75-56-9
(CH 3 ) 3 CCH 2 CH 3
(= Neohexan)
2,2-Dimethylbutane
.
CH 3 CHCH 2 O
(= Propylene oxide)
(= 1,2-Epoxypropane)
2-Methyloxirane
CH 3 NO 2
(= Nitrocarbol)
Nitromethane
(CH 3 ) 3 N
Trimethylamine
CH 2 =CF 2
(= Vinylidene difluoride)
(= Vinylidene fluoride)
1,1-Difluoroethene
CH 3 COCl
Acetyl chloride
2,97
2,00
2,11
2,04
2,21
2,70
-100
-112
-29
-117
-144
-112
50
34
101
3
-86
51
32
-48
–37
35
gas
gas
–4
–18
1,0
1,9
7,3
2,0
3,9
5,0
6,5
7,0
37,0
63,0
12,0
25,1
19,0
16,0
36
49
187
50
102
157
260
260
901
1613
297
665
620
645
660
405
430
414
190
380
390
530
439
4,55
10,5
0,70
1,17
1,05
1,10
3,91
1,82
0,03
0,08
0,92
MIC ratio
75-52-5
75-50-3
75-38-7
75-36-5
CH 2 =CCl 2
-122
Lower
flam. limit
[g/m 3 ]
230
Upper
flam. limit
[g/m 3 ]
3,40
Upper
flam. limit
[Vol.-%]
16,0
Most inc.
mixture
[Vol.-%]
(= Vinylidene Chloride)
Lower
flam. limit
[Vol.-%]
5,6
Auto ign.
temp.
[°C]
1,1-Dichloroethene
Flash
point
[°C]
–10
g 100 – g 0
[mm]
75-35-4
Boiling
point
[°C]
57
MESG
[mm]
CH 3 CHCl 2
Melting
point
[°C]
-98
T2
T2
T2
T4
T2
T2
T1
T2
Temp.
class
(= 1,1-Ethylidene dichloride)
Relative
density
(air = 1)
3,42
IIA
IIB
IIA
IIA
IIA
IIA
IIA
IIA
Equip.
group
(= Ethylidene chloride)
(= Asymmetrical dichloroethane)
d
c
a
a
a
d
a
a
Method of
class.
75-34-3
Name
formula
1,1-Dichloroethane
– 34 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
CASNo.
30
78-10-4
77-78-1
77-73-6
(C 2 H 5 ) 4 Si
(= Silicon tetraethoxide)
(= Tetraethyl silicate)
(= Silicic acid tetraethyl ester)
Tetraethoxy Silane
(CH 3 O) 2 SO 2
(= Dimethyl sulfate)
Sulfuric acid dimethyl ester
C 10 H 12
(= Cyclopentadiene dimer)
(= Dicyclopentadiene)
3a,4,7,7a-Tetrahydro-4,7-methano-1Hindene
HCF 2 CF 2 CH 2 OH
2,2,3,3-Tetrafluoropropan-1-ol
CF 3 CH 2 OH
(= 2,2,2-Trifluoroethyl alcohol)
2,2,2-Trifluoroethanol
CH 3 C(OH)CNCH 3
(= 2-Methyllactonitrile)
(=Acetone cyanohydrin)
7,18
4,34
4,55
4,55
3,45
2,90
-83
-32
33
-15
-44
-20
169
188
172
109
77
82
38
83
36
43
30
74
0,45
0,8
8,4
2,2
7,2
28,8
12,0
43
350
50
1195
374
174
449
455
437
463
543
392
1,00
0,91
1,90
3,00
1,10
T4
T2
T1
T2
T1
T1
T2
IIA
IIA
IIA
IIA
IIA
a
a
a
a
a
60079-20-1 © IEC:2010
76-37-9
75-89-8
Name
formula
(= alpha-Hydroxyisobutyronitrile)
Relative
density
(air = 1)
75-86-5
Melting
point
[°C]
(= 2-Cyano-2-propanol)
Boiling
point
[°C]
(= Cyanohydrin-2-propanone)
Flash
point
[°C]
2-Hydroxy-2-methyl-propionitrile
Lower
flam. limit
[Vol.-%]
10,2
Upper
flam. limit
[Vol.-%]
1,4
Lower
flam. limit
[g/m 3 ]
18
Upper
flam. limit
[g/m 3 ]
102
Auto ign.
temp.
[°C]
-8
MESG
[mm]
3,03
Temp.
class
CH 3 CH 2 C(OH)(CH 3 ) 2
Equip.
group
2-Methylbutan-2-ol
Method of
class.
75-85-4
IS/IEC 60079-20-1 : 2010
– 35 –
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
31
78-87-5
78-86-4
78-84-2
CH 3 CHClCH 2 Cl
(= Propylene dichloride)
1,2-Dichloropropane
CH 3 CHClCH 2 CH 3
(= sec-Butyl chloride)
2-Chlorobutane
(CH 3 ) 2 CHCHO
(= iso-Butyraldehyde)
(= iso-Butanal)
2-Methyl-1-propanal
(CH 3 ) 2 CHCH 2 OH
(= iso-Butyl alcohol)
(= iso-Propylcarbinol)
(= iso-Butanol)
2-Methyl-1-propanol
(CH 3 ) 2 CHCH 2 NH 2
(= iso-Butylamine)
2-Methylpropan-1-amine
3,90
3,19
2,48
2,55
2,52
-80
-140
-65
-108
-85
96
68
64
+108
66
32
15
-21
–22
28
–20
–54
3,4
2,0
1,6
1,4
1,47
1,4
14,5
8,80
11,0
11,0
14,0
at
100
°C
160
77
47
43
44
38
38
682
339
320
340
330
242
557
415
165
408
374
272
420
105
mg/l
Most inc.
mixture
[Vol.-%]
78-83-1
78-81-9
Name
formula
-113
8,3
Upper
flam. limit
[Vol.-%]
2,28
Lower
flam. limit
[Vol.-%]
1,3
Lower
flam. limit
[g/m 3 ]
HC≡CC(CH 3 )CH 2
Flash
point
[°C]
–56
Upper
flam. limit
[g/m 3 ]
2-Methyl-1-buten-3-yne
Boiling
point
[°C]
28
Auto ign.
temp.
[°C]
78-80-8
Melting
point
[°C]
-160
1,16
0,92
0,96
1,15
0,78
0,98
MESG
[mm]
(CH 3 ) 2 CHCH 2 CH 3
Relative
density
(air = 1)
2,50
T1
T2
T4
T2
T2
T3
T2
Temp.
class
(= Isopentane)
IIA
IIA
IIA
IIA
IIA
IIB
IIA
Equip.
group
(= Ethyl dimethyl methane)
d
a
a
a
a
a
a
Method of
class.
78-78-4
2-Methylbutane
– 36 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
MIC ratio
g 100 – g 0
[mm]
CASNo.
32
79-20-9
79-10-7
CH 3 COOCH 3
(= Methyl ethanoate)
(= Ethanoic acid methyl ester)
(= Methyl acetate)
Acetic acid methyl ester
CH 2 =CHCOOH
(= Acrylic acid)
(= Glacial acrylic acid)
(= Ethylenecarboxylic acid)
(= Acroleic acid)
2-Propenoic acid
CH 3 CH 2 COOH
(= Methyl acetic acid)
(= Ethanecarboxylic acid)
2,56
2,48
2,55
-99
13
-21
57
141
141
–10
55
53
3,1
2,4
2,1
16,0
8,0
12,1
13,4
95
72
64
45
Lower
flam. limit
[g/m 3 ]
79-09-4
1,5
475
370
402
Upper
flam. limit
[g/m 3 ]
(= Carboxyethane)
-10
505
406
485
404
208
mg/l
4,8
0,97
0,86
1,10
0,84
0,02
1,08
0,92
T1
T2
T1
T2
T2
IIA
IIB
IIA
IIB
IIA
c
a
a
a
d
60079-20-1 © IEC:2010
Propionic acid
80
Most inc.
mixture
[Vol.-%]
CH 3 CH 2 COCH 3
-86
406
MESG
[mm]
(= Methyl ethyl ketone)
2,48
9,8
g 100 – g 0
[mm]
(= Methyl acetone)
(= Ethyl methyl ketone)
1,7
MIC ratio
78-93-3
Flash
point
[°C]
24
Lower
flam. limit
[Vol.-%]
2-Butanone
Boiling
point
[°C]
99
Upper
flam. limit
[Vol.-%]
CH 3 CHOHCH 2 CH 3
Melting
point
[°C]
-89
Auto ign.
temp.
[°C]
(= Methyl ethyl carbinol)
Relative
density
(air = 1)
2,55
Temp.
class
(= 2-Hydroxybutane)
Equip.
group
(= Butylene hydrate)
Method of
class.
78-92-2
Name
formula
(= sec-Butyl alcohol)
2-Butanol
IS/IEC 60079-20-1 : 2010
– 37 –
CASNo.
33
91-20-3
80-62-6
79-38-9
79-31-2
79-29-8
C 10 H 8
(= W hite tar)
(= Tar camphor)
Naphthalene
CH 3 =CCH 3 COOCH 3
(= Methyl-2-methyl-2-propenoate)
(= Methyl ester of methacrylic acid)
(= Methacrylate monomer)
(= Methyl methacrylate)
2-Methyl-2-propenoic acid methyl ester
CF 2 =CFCl
(= Chlorotrifluoroethylene)
Chlorotrifluoroethene
(CH 3 ) 2 CHCOOH
(= Dimethylacetic acid)
(= iso-Butyric acid)
2-Methylpropanoc acid
(CH 3 ) 2 CH(CH 3 )CH 2 CH 3
(= Diisopropyl)
2,3-Dimethylbutane
4,42
3,45
4,01
3,03
2,97
80
-48
-157
-46
-129
-90
218
101
-28
155
58
114
77
10
gas
58
<-20
27
0,6
at
150
°C
1,7
4,6
2,0
1,0
3,4
5,9
12,5
64,3
10,0
26,0
Upper
flam. limit
[Vol.-%]
2,58
Lower
flam. limit
[Vol.-%]
7,5
29
at
150
°C
71
220
36
107
293
Lower
flam. limit
[g/m 3 ]
CH 3 CH 2 NO 2
Flash
point
[°C]
10
317
520
3117
1020
Upper
flam. limit
[g/m 3 ]
Nitroethane
Boiling
point
[°C]
72
540
430
607
443
396
412
475
Auto ign.
temp.
[°C]
79-24-3
Melting
point
[°C]
-61
0,95
1,50
1,02
0,87
1,20
MESG
[mm]
CH 3 OOCCl
Relative
density
(air = 1)
3,30
T1
T2
T1
T2
T2
T2
T1
Temp.
class
(= Methoxycarbonyl chloride)
IIA
IIA
IIA
IIA
IIA
IIB
IIA
Equip.
group
(= Methyl chloroformate)
d
a
a
a
d
d
a
Method of
class.
79-22-1
Name
formula
Carbonochloridic acid methyl ester
– 38 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
34
97-62-1
96-37-7
(CH 3 ) 2 CHCOOC 2 H 5
(= Ethyl 2-methylpropanoate)
(= Ethyl isobutyrate)
2-Methylpropanoic acid ethyl ester
.
CH 3 CH(CH 2 ) 3 CH 2
Methylcyclopentane
CH 2 =CHCOOCH 3
4,00
2,90
-88
-142
-75
110
72
80
102
10
<–10
–3
7
1,6
1,0
1,95
1,6
8,4
16,3
75
35
71
58
296
581
438
258
455
445
5,6
Most inc.
mixture
[Vol.-%]
(= Methyl Acrylate)
3,00
-42
76
470
0,96
0,85
0,90
0,90
1,09
0,02
g 100 – g 0
[mm]
(= Methyl propenoate)
3,00
185
335
0,98
MIC ratio
(= Methoxycarbonyl ethylene)
(= Acrylic acid methyl ester)
Propenoic acid methyl ester
(CH 3 CH 2 ) 2 CO
(= Propione)
(= Metacetone)
(= Diethyl ketone)
-41
43
T2
T3
T1
T2
T1
IIA
IIA
IIB
IIA
IIA
IIA
a
d
a
a
a
a
60079-20-1 © IEC:2010
96-33-3
96-22-0
Pentan-3-one
(COOCH 2 CH 3 ) 2
5,04
7,6
Upper
flam. limit
[Vol.-%]
(= Oxalic acid diethyl ester)
Lower
flam. limit
[Vol.-%]
1,0
Lower
flam. limit
[g/m 3 ]
(= Diethyl Oxalate)
Flash
point
[°C]
30
Upper
flam. limit
[g/m 3 ]
95-92-1
Boiling
point
[°C]
144
Auto ign.
temp.
[°C]
Ethanedioic acid diethyl ester
Melting
point
[°C]
-25
MESG
[mm]
C 6 H 4 (CH 3 ) 2
Relative
density
(air = 1)
3,66
Temp.
class
(= o-Xyol)
Equip.
group
(= o-Xylene)
Method of
class.
95-47-6
Name
formula
1,2-Dimethyl benzene
IS/IEC 60079-20-1 : 2010
– 39 –
CASNo.
35
98-00-0
97-99-4
97-95-0
.
OC(CH 2 OH)CHCHCH
(= 2-Hydroxymethylfuran)
(= Furfuryl Alcohol)
2-Furylmethanol
.
OCH 2 CH 2 CH 2 CHCH 2 OH
(= 2-Hydroxymethyl oxolane)
(= Tetrahydro-2-furan carbinol)
(= Tetrahydrofuran-2-yl-methanol)
(= Tetrahydrofurfuryl alcohol)
Tetrahydro-2-furan methanol)
CH 3 CH(CH 2 CH 3 )CH 2 CH 2 OH
(= Isohexyl alcohol)
2-Ethyl-1-butanol
CH 2 =C(CH 3 )COO(CH 2 ) 3 CH 3
(= Butyl-2-methylprop-2-enoate)
3,38
3,52
3,52
4,90
-31
-52
171
178
149
163
147
61
70
57
53
34
1,8
1,5
1,2
1,0
0,8
16,3
9,7
8,3
6,8
Upper
flam. limit
[Vol.-%]
(= Butyl methacrylate)
-81
70
64
58
47
70
670
416
395
Upper
flam. limit
[g/m 3 ]
97-88-1
2-Methyl-2-propenoic acid butyl ester
(CH 3 ) 2 CHCOOCH 2 CH(CH 3 ) 2
4,93
1,5
370
280
315
289
424
Auto ign.
temp.
[°C]
(= iso-Butyl isobutyrate)
Flash
point
[°C]
19
0,8
0,85
0,95
1,00
1,01
T2
T3
T2
T3
T2
Temp.
class
97-85-8
Boiling
point
[°C]
117
Lower
flam. limit
[Vol.-%]
2-Methylpropanoic acid 2-methylpropyl
ester
Melting
point
[°C]
-75
Lower
flam. limit
[g/m 3 ]
CH 2 =CCH 3 COOCH 2 CH 3
Relative
density
(air = 1)
3,90
MESG
[mm]
(= Ethyl methacrylate)
IIB
IIB
IIA
IIA
IIA
Equip.
group
(= Methacrylic acid ethyl ester)
a
d
a
a
a
Method of
class.
97-63-2
Name
formula
2-Methyl-prop-2-enoic acid ethyl ester
– 40 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
36
99-87-6
98-95-3
CH 3 C 6 H 4 CH (CH 3 ) 2
(= p-isopropyltoluene)
(= p-Cymene)
1-Methyl-4-(1-methylethyl)benzene
C 6 H 5 NO 2
(= Oil of mirbane)
(= Nitrobenzol)
Nitrobenzene
C 6 H 5 C(CH 3 )=CH 2
(= 2-Phenyl propylene)
(= 1-Methyl-1-phenylethylene)
(= Isopropenyl benzene)
α-Methyl styrene
C 6 H 5 CH (CH 3 ) 2
4,62
4,25
4,08
4,13
-68
6
-23
-96
177
211
166
152
47
88
40
31
0,7
1,4
0,8
0,8
5,6
40,0
11,0
6,5
39
72
44
40
85
366
2067
330
328
768
436
481
445
424
316
0,94
0,88
1,05
0,88
T2
T1
T2
T2
T2
IIA
IIA
IIB
IIA
IIB
d
a
a
d
a
60079-20-1 © IEC:2010
98-83-9
(= Isopropyl benzene)
(= 2-Phenyl propane)
19,3
Upper
flam. limit
[Vol.-%]
98-82-8
Lower
flam. limit
[Vol.-%]
2,1
Lower
flam. limit
[g/m 3 ]
(= Cumene)
Flash
point
[°C]
60
Upper
flam. limit
[g/m 3 ]
.
Boiling
point
[°C]
162
Auto ign.
temp.
[°C]
(1-Methylethyl) benzene
Melting
point
[°C]
-33
MESG
[mm]
OCH=CHCH=CHCHO
Relative
density
(air = 1)
3,30
Temp.
class
(= 2-Furaldehyde)
Equip.
group
(= Furfural)
(= Fural)
Method of
class.
98-01-1
Name
formula
2-Furancarbox aldehyde
IS/IEC 60079-20-1 : 2010
– 41 –
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
37
100-43-6
.
NCHCHC(CH 2 =CH)CHCH
(= γ-Vinylpyridine)
(= 4-Ethenylpyridine)
4-Vinylpyridine
C 6 H 5 CH=CH 2
(= Styrol)
(= Phenylethylene)
(= Vinylbenzene)
3,62
3,60
3,66
-31
-95
171
145
136
43
30
15
15
1,1
1,0
0,8
0,8
8,0
7,8
47
42
44
35
350
340
501
490
431
257
320
0,95
0,96
1,21
MIC ratio
100-42-5
(= Styrene)
Ethenylbenzene
C 6 H 5 CH 2 CH 3
(= Phenylethane)
128
Upper
flam. limit
[Vol.-%]
(= α-Methyltoluene)
-109
Upper
flam. limit
[g/m 3 ]
100-41-4
.
Ethylbenzene
3,72
Lower
flam. limit
[Vol.-%]
(CH 2 =CH)CH(CH 2 ) 4 CH 2
Lower
flam. limit
[g/m 3 ]
(= Vinyl cyclohexene)
60
MESG
[mm]
100-40-3
4-Ethenylcyclohexene
Boiling
point
[°C]
162
Flash
point
[°C]
(C 2 H 5 ) 2 NCH 2 CH 2 OH
Melting
point
[°C]
-70
Auto ign.
temp.
[°C]
(= 2-Hydroxytriethylamine)
Relative
density
(air = 1)
4,0
T1
T1
T2
T3
T2
Temp.
class
(= Diethyl-(2-hydroxyethyl)amine)
IIA
IIA
IIA
IIA
IIA
Equip.
group
(= N,N-Diethylethanol amine)
(= 2-Diethylaminoethyl alcohol)
(= Diethylaminoethanol)
a
b
d
a
d
Method of
class.
100-37-8
Name
formula
2-Diethylaminoethanol
– 42 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
38
105-45-3
104-76-7
CH 3 COOCH 2 COCH 3
(= Methyl acetoacetate)
(= 1-Methoxybutane-1,3-dione)
(= Acetoacetic acid methyl ester)
3-Oxo-butanoic acid methyl ester
CH 3 (CH 2 ) 3 CH(CH 2 CH 3 )CH 2 OH
2-Ethyl-1-hexanol
CH 2 =CHCOO(CH 2 ) 4 CH 3
(= 2-Ethylhexyl acrylate)
(= 2-Ethylhexyl 2-propenoate)
Prop-2-enoic acid 2-ethylhexyl ester
CH 3 COOCH 2 CH(C 2 H 5 )C 4 H 9
4,00
4,5
6,36
5,94
-80
-76
-90
-93
170
182
214
199
159
62
73
82
44
35
64
1,3
0,9
0,7
0,8
1,2
1,4
14,2
9,7
8,2
8,1
Upper
flam. limit
[Vol.-%]
(= 2-Ethylhexyl acetate)
-50
179
62
53
51
62
685
439
Upper
flam. limit
[g/m 3 ]
103-11-7
103-09-3
Acetic acid-2-ethylhexyl ester
3,62
-26
280
288
252
335
482
192
585
0,85
0,88
0,96
T3
T3
T3
T2
T1
T4
T1
IIB
IIB
IIA
IIA
IIA
a
a
a
d
d
60079-20-1 © IEC:2010
.
NC(CH 2 =CH)CHCHCHCH
(= α-Vinylpyridine)
(= 2-Ethenylpyridine)
3,66
55
MESG
[mm]
100-69-6
2-Vinylpyridine
C 6 H 5 CHO
1,1
Lower
flam. limit
[Vol.-%]
Benzaldehyde
Flash
point
[°C]
60
Lower
flam. limit
[g/m 3 ]
100-52-7
Boiling
point
[°C]
179
Auto ign.
temp.
[°C]
C 6 H 5 CH 2 Cl
Melting
point
[°C]
-39
Temp.
class
(= Tolyl chloride)
Relative
density
(air = 1)
4,36
Equip.
group
(= α-Chlorotoluene)
(= Benzyl chloride)
Method of
class.
100-44-7
Name
formula
(Chloromethyl)benzene
IS/IEC 60079-20-1 : 2010
– 43 –
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
39
106-46-7
106-42-3
106-35-4
C 6 H 4 Cl 2
(= Dichlorocide)
1,4-Dichlorobenzene
C 6 H 4 (CH 3 ) 2
(= p-Xyol)
(= p-Xylene)
1,4-Dimethyl benzene
CH 3 CH 2 CO[CH 2 ] 3 CH 3
(= Ethyl butyl ketone)
3-Heptanone
(CH 3 CH 2 O) 2 CO
(= Diethyl carbonate)
Carbonic acid diethyl ester
CH 3 CH 2 CH 2 COO CH 2 CH 3
(= Butyric acid ethyl ester)
(= Ethyl butyrate)
5,07
3,66
3,94
4,07
4,00
53
13
-38
-43
-93
174
138
298
126
121
66
25
37
24
21
42
2,2
0,9
1,1
1,4
1,4
1,6
9,2
7,6
7,3
11,7
134
42
69
66
89
564
335
570
Upper
flam. limit
[g/m 3 ]
105-58-8
105-54-4
(= Ethyl butanoate)
Butanoic acid ethyl ester
151
Lower
flam. limit
[g/m 3 ]
ClCH 2 COOCH(CH 3 ) 2
4,71
648
535
410
450
435
426
422
1,09
0,83
0,92
1,24
MESG
[mm]
(= Propan-2-yl 2-chloroacetate)
7,5
T1
T1
T2
T2
T2
T2
T2
IIA
IIA
IIB
IIA
IIA
Equip.
group
(= iso-Propyl chloroacetate)
1,3
d
a
a
a
a
Method of
class.
105-48-6
-18
Flash
point
[°C]
Chloroacetic acid-1-methylethyl ester
Boiling
point
[°C]
112
Lower
flam. limit
[Vol.-%]
CH 3 COOCH(CH 3 )CH 2 CH 3
Melting
point
[°C]
-99
Upper
flam. limit
[Vol.-%]
(= 1-Methylpropyl acetate)
Relative
density
(air = 1)
4,00
Auto ign.
temp.
[°C]
(= sec-Butyl ester of acetic acid)
(= sec-Butyl acetate)
Temp.
class
105-46-4
Name
formula
Acetic acid 1-methylpropyl ester
– 44 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
40
106-98-9
CH 2 =CHCH 2 CH 3
(= Ethylethylene)
(= n-Butylene)
1-Butene
CH 3 (CH 2 ) 2 CH 2
1,93
2,05
-185
-138
-6
-1
89
154
gas
gas
10
45
28
1,6
1,4
3,0
2,3
10,0
9,3
34,4
38
33
86
235
225
1325
345
372
324
249
385
3,2
Most inc.
mixture
[Vol.-%]
(= Methylethylmethane)
-61
-100
116
0,94
0,98
0,70
0,74
0,02
g 100 – g 0
[mm]
(= Diethyl)
4,10
3,94
-48
1,00
0,94
MIC ratio
106-97-8
(= Butyl hydride)
n-Butane
CH 3 CH ≡ CBr
(= Bromo propyne)
3-Bromo-1-propine
CH 2 =CH-CH 2 -O-CHCH 2 CH 2 O
(= Allyl glycidyl ether)
(= Glycidyl allyl ether)
(= 1-(Allyloxy)-2,3-epoxypropan)
(= Allyl 2,3- epoxypropylether)
[(2-Propenyloxy) methyl] oxirane
.
OCH 2 CHCH 2 Cl
3,19
199
T2
T2
T2
T3
T2
T4
IIA
IIA
IIB
IIB
IIA
a
c
a
a
a
60079-20-1 © IEC:2010
106-96-7
106-92-3
Name
formula
(= 2-Chloropropylene oxide)
Upper
flam. limit
[Vol.-%]
(= 1-Chloro-2,3-epoxypropane)
Relative
density
(air = 1)
47
Upper
flam. limit
[g/m 3 ]
106-89-8
Melting
point
[°C]
(= Epichlorohydrin)
Boiling
point
[°C]
(Chloromethyl) oxirane
Flash
point
[°C]
1,0
Lower
flam. limit
[Vol.-%]
21,5
Lower
flam. limit
[g/m 3 ]
131
Auto ign.
temp.
[°C]
-1
MESG
[mm]
3,93
Temp.
class
NH(CH 3 )CH 2 CH 2 NH(CH 3 )CH 2 CH 2
Equip.
group
1,4-Dimethylpiperazine
Method of
class.
106-58-1
IS/IEC 60079-20-1 : 2010
– 45 –
41
107-06-2
107-05-1
107-02-8
Name
formula
CH 2 ClCH 2 Cl
(= Ethylene dichloride)
(= Ethylene chloride)
1,2-Dichloroethane
CH 2 =CHCH 2 Cl
(= 3-Chloropropylene)
(= 1-Chloro-2-propene)
(= Allyl chloride)
3-Chloro-1-propene
CH 2 =CHCHO
(= Acrolein)
(= Propenal)
(= Allyl aldehyde)
(= Acrylic aldehyde)
(= Acrylaldehyde)
(= Acraldehyde)
2-Propenal (inhibited)
CH 3 CH 2 C≡CH
3,42
2,64
1,93
-36
-136
-88
-125
84
45
52
8
13
-32
–18
gas
6,2
2,9
2,8
16,0
11,2
31,8
Lower
flam. limit
[g/m 3 ]
255
92
65
31
654
357
728
365
Upper
flam. limit
[g/m 3 ]
1,86
Upper
flam. limit
[Vol.-%]
16,3
438
390
217
420
Auto ign.
temp.
[°C]
(= Ethylacetylene)
Lower
flam. limit
[Vol.-%]
1,4
9,5
3,9
Most inc.
mixture
[Vol.-%]
1-Butine
Flash
point
[°C]
gas
1,80
1,17
0,72
0,71
0,79
MESG
[mm]
107-00-6
Boiling
point
[°C]
-5
0,05
0,02
g 100 – g 0
[mm]
CH 2 =CHCH=CH 2
Melting
point
[°C]
-109
1,33
0,76
MIC ratio
(= Vinylethylene)
Relative
density
(air = 1)
1,87
T2
T2
T3
T2
Temp.
class
(= Erythrene)
IIA
IIA
IIB
IIB
IIB
Equip.
group
(= Divinyl)
(= Bivinyl)
a
a
a
a
c
Method of
class.
106-99-0
CASNo.
(= Biethylene)
1,3-Butadiene
– 46 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
CASNo.
42
107-18-6
107-15-3
CH 2 =CHCH 2 OH
(= Vinyl carbinol)
(= Allyl alcohol)
(= Propenol)
(= Allylic alcohol)
2-Propen-1-ol
NH 2 CH 2 CH 2 NH 2
(= Dimethylenediamine)
(= Ethylenediamine)
1,2-Ethanediamine
CH 2 =CHCN
2,00
2,07
-129
8
97
116
77
21
33
-5
2,5
2,5
2,8
2,0
18,0
16,5
28,0
10,4
61
64
64
49
438
396
620
258
378
385
480
318
7,1
Most inc.
mixture
[Vol.-%]
(= Vinyl cyanide, VCN)
-82
–37
425
0,84
1,18
0,87
1,13
0,02
0,78
T2
T2
T1
T2
T2
IIB
IIA
IIB
IIA
IIA
a
a
c
d
d
60079-20-1 © IEC:2010
(= Acrylonitrile)
1,83
49
540
g 100 – g 0
[mm]
(= Propenenitrile)
(= Cyanoethylene)
-83
160
MIC ratio
107-13-1
(= Acrylonitrile)
2-Propenenitrile
2,04
16,0
Upper
flam. limit
[Vol.-%]
CH 3 (CH 2 ) 2 NH 2
Lower
flam. limit
[Vol.-%]
4,9
Lower
flam. limit
[g/m 3 ]
(= 1-Aminopropane)
Flash
point
[°C]
55
MESG
[mm]
107-10-8
Boiling
point
[°C]
128
Upper
flam. limit
[g/m 3 ]
1-Propaneamine
Melting
point
[°C]
-68
Auto ign.
temp.
[°C]
CH 2 ClCH 2 OH
Relative
density
(air = 1)
2,78
Temp.
class
(= 2-Chloroethyl alcohol)
Equip.
group
(= 2-Chloroethanol)
Method of
class.
107-07-3
Name
formula
Ethylene chlorohydrin
IS/IEC 60079-20-1 : 2010
– 47 –
CASNo.
43
CH 3 COOCH=CH 2
(= 1-Acetoxyethylene)
3,00
3,10
-100
-108
-40
-100
-104
72
132
131
32
59
–7
35
39
–20
–8
2,6
2,2
5,0
5,7
13,4
23,0
18,4
93
82
125
478
580
385
420
220
525
4,75
Most inc.
mixture
[Vol.-%]
(= Vinyl acetate)
Acetic acid ethenyl ester
CH 3 CH 2 CH 2 NO 2
1-Nitropropane
3,03
2,07
2,78
(aquous
solution
40 %)
346
0,94
0,84
0,94
1,00
0,58
0,02
g 100 – g 0
[mm]
108-05-4
108-03-2
(CH 3 ) 2 NC 2 H 4 OH
2-(Dimethylamino)ethanol
HCOOCH 3
(= Methyl methanoate)
(= Methyl formate)
Formic acid methyl ester
CH 3 OCH 2 Cl
(= Methylchloromethyl ether)
(= Dimethylchloroether)
(= Chloromethoxy methane)
(= Chlorodimethyl ether)
(= Chloromethyl methyl ether)
Chloromethoxymethane
ClCH 2 CHO
88
55
Upper
flam. limit
[g/m 3 ]
108-01-0
107-31-3
107-30-2
Name
formula
2,69
Lower
flam. limit
[Vol.-%]
2,4
Upper
flam. limit
[Vol.-%]
(= 2-Chloroethanal)
Flash
point
[°C]
33
Lower
flam. limit
[g/m 3 ]
107-20-0
Boiling
point
[°C]
115
Auto ign.
temp.
[°C]
Chloroacetaldehyde
Melting
point
[°C]
-48
MESG
[mm]
HCCCH 2 OH
Relative
density
(air = 1)
1,89
T2
T2
T3
T1
T2
Temp.
class
(= Propargyl alcohol)
IIA
IIB
IIA
IIA
IIA
IIB
Equip.
group
(= Prop-2-yn-1-ol)
a
a
d
a
a
a
Method of
class.
107-19-7
2-Propine-1-ol
– 48 –
60079-20-1
 IEC:2010
IS/IEC 60079-20-1
: 2010
MIC ratio
CASNo.
44
108-21-4
CH 3 COOCH(CH 3 ) 2
(= 2-Propyl acetate)
(= 1-Methylethyl ester of acetic acid)
(= iso-propyl ester of acetic acid)
(= iso-propyl acetate)
Acetic acid-1-methylethyl ester
((CH 3 ) 2 CH) 2 O
(= 2-Isopropoxy propane)
3,51
3,52
-17
-86
-61
90
69
82
133
1
–28
–20
37
1,7
1,0
1,2
1,14
8,1
21,0
8,5
5,5
75
45
49
47
340
900
358
235
425
405
285
334
475
2,6
Most inc.
mixture
[Vol.-%]
(= Diisopropyl ether)
3,48
-60
336
1,05
0,94
1,02
1,01
1,01
0,06
g 100 – g 0
[mm]
108-20-3
2,2´-Oxybispropane
((CH 3 ) 2 CH) 2 NH
(= Diisopropylamine)
3,50
50
T2
T2
T3
T2
T1
IIA
IIA
IIA
IIA
IIA
a
a
a
a
a
60079-20-1 © IEC:2010
108-18-9
n-(1-Methylethyl)-2-propanamine
(CH 3 ) 2 CHCH 2 CHOHCH 3
(= Methyl isobutyl carbinol)
(= Methyl amyl alcohol)
Upper
flam. limit
[Vol.-%]
8,0
Lower
flam. limit
[g/m 3 ]
108-11-2
Lower
flam. limit
[Vol.-%]
1,2
Upper
flam. limit
[g/m 3 ]
(= Isobutylmethylcarbinol)
Flash
point
[°C]
16
Auto ign.
temp.
[°C]
4-Methylpentan-2-ol
Boiling
point
[°C]
116
MESG
[mm]
(CH 3 ) 2 CHCH 2 COCH 3
Melting
point
[°C]
-80
Temp.
class
(= Methyl isobutyl ketone)
Relative
density
(air = 1)
3,45
Equip.
group
(= Isopropylacetone)
(= Hexone)
Method of
class.
108-10-1
Name
formula
4-Methylpentan-2-one
IS/IEC 60079-20-1 : 2010
– 49 –
MIC ratio
CASNo.
45
108-88-3
108-87-2
108-82-7
108-67-8
108-62-3
C 6 H 5 CH 3
(= Phenyl methane)
(= Methyl benzol)
(= Toluene)
Methyl benzene
.
CH 3 CH(CH 2 ) 4 CH 2
(= Hexahydrodoluene)
Methylcyclohexane
((CH 3 ) 2 CHCH 2 ) 2 CHOH
(= Diisobutylcarbinol)
2,6-Dimethylheptan-4-ol
CHC(CH 3 )CHC(CH 3 )CHC(CH 3 )
(= Mesitylene)
1,3,5-Trimethylbenzene
(C 2 H 4 O) 4
(= Metaldehyde)
2,4,6,8-Tetramethyl-1,3,5,7tetraoxocane
C 6 H 4 (CH 3 ) 2
(= m-Xylol)
3,20
3,38
4,97
4,15
6,10
3,66
-95
-127
-65
-45
246
-48
111
101
176
165
./.
139
4
–4
75
44
36
25
1,0
1,0
0,7
0,8
1,0
7,8
6,70
6,10
7,3
7,0
10,3
Upper
flam. limit
[Vol.-%]
(= m-Xylene)
Lower
flam. limit
[Vol.-%]
2,0
39
41
42
40
85
Lower
flam. limit
[g/m 3 ]
108-38-3
Flash
point
[°C]
49
300
275
370
365
310
428
Upper
flam. limit
[g/m 3 ]
1,3-Dimethylbenzene
Boiling
point
[°C]
140
530
250
290
499
465
316
Auto ign.
temp.
[°C]
(CH 3 CO) 2 O
Melting
point
[°C]
-73
1,06
0,93
0,98
1,09
1,23
MESG
[mm]
(= Ethanoic anhydride)
Relative
density
(air = 1)
3,52
T1
T3
T3
T1
T1
T2
Temp.
class
(= Acetyl oxide)
IIA
IIA
IIA
IIA
IIA
IIA
IIA
Equip.
group
(= Acetic oxide)
d
d
a
a
d
d
a
Method of
class.
108-24-7
Name
formula
(= Acetic acid anhydride)
Acetic anhydride
– 50 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
46
.
CH 2 (CH 2 ) 4 CO
(= Pimelic ketone)
3,38
-26
24
-18
156
161
134
43
61
27
28
1,3
1,2
1,1
1,3
9,4
11,1
9,4
11,0
53
50
47
60
386
460
520
419
300
275
593
534
3,0
Most inc.
mixture
[Vol.-%]
(= Cyclohexyl ketone)
3,45
3,42
132
296
0,95
1,12
0,03
g 100 – g 0
[mm]
108-94-1
(= Anone)
Cyclohexanone
.
CH 2 (CH 2 ) 4 CHOH
(= Hexalin)
(= Hexahydrophenol)
(= Cyclohexyl alcohol)
Cyclohexanol
.
CH 2 (CH 2 ) 4 CHNH 2
(= Hexahydro-benzenamine)
(= Hexahydroaniline)
(= Aminohexahydro-benzene)
(= Aminocyclohexane)
Cyclohexylamine
C 6 H 5 Cl
-45
42
T2
T3
T3
T1
T1
IIA
IIA
IIA
IIA
IIA
a
d
d
d
a
60079-20-1 © IEC:2010
108-93-0
108-91-8
Name
formula
3,88
7,8
Upper
flam. limit
[Vol.-%]
(= Monochlorobenzene)
Lower
flam. limit
[Vol.-%]
1,1
Lower
flam. limit
[g/m 3 ]
(= Phenyl chloride)
Flash
point
[°C]
43
Upper
flam. limit
[g/m 3 ]
108-90-7
Boiling
point
[°C]
145
Auto ign.
temp.
[°C]
.
Melting
point
[°C]
3
MESG
[mm]
Chlorobenzene
Relative
density
(air = 1)
3,21
Temp.
class
NCHCHC(CH 3) CHCH 2
Equip.
group
(= γ-Picoline)
Method of
class.
108-89-4
4-Methylpyridine
IS/IEC 60079-20-1 : 2010
– 51 –
MIC ratio
47
CH 3 (CH 2 ) 3 CH 3
2,48
4,72
-130
-112
-92
-70
-70
36
102
102
134
128
144
–40
13
10
26
27
43
1,1
2,5
1,7
1,2
1,2
1,4
8,7
6,6
8,0
8,1
33
6,6
70
50
45
53
260
143
343
308
370
243
265
430
219
533
537
595
2,55
135
mg/l
0,93
1,04
0,95
1,08
1,14
0,02
g 100 – g 0
[mm]
n-Pentane
CH 3 (CH 2 ) 2 CH 2 Br
(= n-Butyl bromide)
3,50
3,52
3,21
-18
50
0,97
MIC ratio
109-66-0
109-65-9
1-Bromobutane
CH 3 COOCH 2 CH 2 CH 3
(= n-propyl ester acetic acid)
(= 1-Acetoxypropane)
(= n-Propyl acetate)
Acetic acid n-propyl ester
(CH 3 ) 2 N(CH 2 ) 3 NH 2
(= 1-Amino-3-dimethyl-aminopropane)
(= 3-Dimethylamino-propylamine)
N,N-Dimethylpropane-1,3-diamine
.
NC(CH 3 )CHCHCHCH
(= α-Picoline)
3,21
9,5
Most inc.
mixture
[Vol.-%]
109-60-4
109-55-7
109-06-8
2-Methylpyridine
.
NCHC(CH 3 )CHCHCH
Lower
flam. limit
[Vol.-%]
1,3
MESG
[mm]
(= β-Picoline)
Flash
point
[°C]
75
Upper
flam. limit
[Vol.-%]
3-Methylpyridine
Boiling
point
[°C]
182
Lower
flam. limit
[g/m 3 ]
C 6 H 5 OH
Melting
point
[°C]
41
Upper
flam. limit
[g/m 3 ]
(= Oxybenzene)
Relative
density
(air = 1)
3,24
Auto ign.
temp.
[°C]
(= Monophenol)
T3
T3
T2
T3
T1
T1
T1
Temp.
class
(= Monohydroxybenzene)
IIA
IIA
IIA
IIA
IIA
IIA
IIA
Equip.
group
108-99-6
Name
formula
(= Hydroxybenzene)
c
d
a
a
a
a
d
Method of
class.
108-95-2
CASNo.
(= Carbolic acid)
Phenol
– 52 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
CASNo.
48
109-89-7
109-87-5
(C 2 H 5 ) 2 NH
(= Diethylamine)
(= Diethamine)
n-Ethylethanamine
CH 2 (OCH 3 ) 2
(= 2,4-Dioxapentane)
(= Dimethyl formal)
(= Dimethyl acetal formaldehyde)
(= Dimethyl acetal methanal)
(= Methylal)
Dimethoxymethane
CH 3 OCH 2 CH 2 OH
(= Ethylene glycol monomethyl ether)
2-Methoxyethanol
CH 3 (CH 2 ) 3 SH
(= 1-Mercaptobutane)
(= n-Butanethiol)
(= n-Butyl mercaptan)
(= Butanethiol)
1-Butanethiol
2,53
2,60
2,63
3,10
-50
-105
-86
-116
-50
56
43
104
98
78
–23
–21
39
2
–12
1,7
2,2
1,8
1,4
1,7
10,1
19,9
20,6
11,3
9,8
50
71
76
49
69
306
630
650
286
386
312
235
285
272
312
245
1,15
0,86
0,85
0,92
1,06
1,13
T2
T3
T3
T3
T2
T3
IIA
IIB
IIB
IIA
IIA
a
a
a
c
a
60079-20-1 © IEC:2010
109-86-4
109-79-5
Name
formula
2,52
Upper
flam. limit
[Vol.-%]
10,0
Lower
flam. limit
[g/m 3 ]
CH 3 (CH 2 ) 3 NH 2
Lower
flam. limit
[Vol.-%]
1,8
Upper
flam. limit
[g/m 3 ]
(= n-Butylamine)
Flash
point
[°C]
–12
MIC ratio
109-73-9
Boiling
point
[°C]
78
Auto ign.
temp.
[°C]
1-Aminobutane
Melting
point
[°C]
-123
MESG
[mm]
CH 3 (CH 2 ) 2 CH 2 Cl
Relative
density
(air = 1)
3,20
Temp.
class
(= n-Propylcarbinyl chloride)
Equip.
group
(= n-Butyl chloride)
Method of
class.
109-69-3
1-Chlorobutane
IS/IEC 60079-20-1 : 2010
– 53 –
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
49
110-01-0
110-00-9
109-99-9
CH 2 (CH 2 ) 2 CH 2 S
(= Thiocyclopentane)
(= Thiophane)
(= Thiolane)
(= Tetramethylene sulphide)
Tetrahydrothiophene
.
CH=CHCH=CHO
(= Oxacyclopentadiene)
(= Oxole)
(= Tetrole)
(= Furfuran)
(= Divinylene oxide)
Furan
.
CH 2 (CH 2 ) 2 CH 2 O
(= Tetramethylene oxide)
(= Oxacyclopentane)
(= Oxolane)
(= 1,4-Epoxybutane)
Tetrahydrofuran
CH 3 CH 2 ONO
(= Ethyl nitrite ; see 5.2.2)
3,04
2,30
2,49
2,60
-96
-86
-108
121
32
64
17
13
<–20
–14
–35
1,1
2,3
1,5
3,0
Upper
flam. limit
[Vol.-%]
12,3
14,3
12,4
50,0
16,5
42
66
46
94
87
450
408
370
1555
497
200
390
230
95
440
270
mg/l
Most inc.
mixture
[Vol.-%]
comment:
both are
valid
Lower
flam. limit
[Vol.-%]
2,7
Lower
flam. limit
[g/m 3 ]
Nitrous acid ethyl ester
Flash
point
[°C]
–20
Upper
flam. limit
[g/m 3 ]
(8013-58-9)
Boiling
point
[°C]
54
Auto ign.
temp.
[°C]
HCOOCH 2 CH 3
Melting
point
[°C]
-80
0,99
0,68
0,87
0,96
0,91
MESG
[mm]
109-95-5 or
Relative
density
(air = 1)
2,55
T4
T2
T3
T6
T2
Temp.
class
(= Ethyl formate)
IIA
IIB
IIB
IIA
IIA
Equip.
group
(= Ethyl methanoate)
a
a
a
a
a
Method of
class.
109-94-4
Name
formula
Formic acid ethyl ester
– 54 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
MIC ratio
g 100 – g 0
[mm]
CASNo.
50
110-62-3
CH 3 (CH 2 ) 3 CHO
(= Valeraldehyde)
(= Butyl formal)
(= Amyl aldehyde)
1-Pentanal
2,97
-92
103
151
6
–22
39
1,4
1,0
1,1
0,74
9,5
8,9
7,9
100
50
35
52
45
319
378
206
225
305
170
2,5
Most inc.
mixture
[Vol.-%]
CH 3 (CH 2 ) 4 CH 3
2,97
-35
4
395
0,93
0,84
0,91
0,02
g 100 – g 0
[mm]
(= Hexyl hydride)
3,94
110
435
0,88
MIC ratio
(n-Hexane)
Hexane (mixed isomers)
CH 3 CO(CH 2 ) 4 CH 3
(= Butylacetone)
(= Amyl methyl ketone)
(= 2-Oxoheptane)
-40
50
T3
T3
T2
T4
T2
IIA
IIA
IIB
IIA
c
d
a
a
60079-20-1 © IEC:2010
110-54-3
110-43-0
(= 1-Methylhexanal)
Heptan-2-one
(CH 3 ) 3 COOC(CH 3 ) 3
5,0
12,5
Upper
flam. limit
[Vol.-%]
(= tert-Dibutyl peroxide)
Lower
flam. limit
[Vol.-%]
1,50
Lower
flam. limit
[g/m 3 ]
110-05-4
Flash
point
[°C]
–9
Upper
flam. limit
[g/m 3 ]
.
Boiling
point
[°C]
84
Auto ign.
temp.
[°C]
bis(1,1-Dimethylethyl) peroxide
Melting
point
[°C]
-36
MESG
[mm]
CH=CHCH=CHS
Relative
density
(air = 1)
2,90
Temp.
class
(= Thiofuran)
Equip.
group
(=Thiacyclopentadiene)
Method of
class.
110-02-1
Name
formula
(= Divinylene sulphide)
Thiophene
IS/IEC 60079-20-1 : 2010
– 55 –
CASNo.
51
110-86-1
C5H5N
(= Azabenzene)
(= Azine)
Pyridine
.
CH 2 (CH 2 ) 3 CH=CH
(= Tetrahydrobenzene)
(= Benzene tetrahydride)
Cyclohexene
.
CH 2 (CH 2 ) 4 CH 2
(= Hexanaphthene)
2,73
2,90
2,83
3,10
-42
-104
7
-100
116
83
81
135
18
-17
–17
40
1,7
1,1
1,0
1,7
12,4
8,3
8,0
15,7
56
37
35
68
398
290
593
390
482
244
244
235
197
90
mg/l
Most inc.
mixture
[Vol.-%]
(= Hexamethylene)
(= Hexahydrobenzene)
Cyclohexane
CH 3 CH 2 OCH 2 CH 2 OH
(= Ethylene glycol monoethyl ether)
(= Ethylene glycol ethyl ether)
(=3-Oxapentan-1-ol)
60
0,94
0,94
0,78
0,72
0,97
MIC ratio
110-83-8
110-82-7
110-80-5
10,4
Upper
flam. limit
[Vol.-%]
(= Ethyl cellosolve)
Lower
flam. limit
[Vol.-%]
1,6
Lower
flam. limit
[g/m 3 ]
(= Ethane-1,2-diol ethyl ether)
Flash
point
[°C]
–6
Upper
flam. limit
[g/m 3 ]
2-Ethoxyethanol
Boiling
point
[°C]
84
Auto ign.
temp.
[°C]
CH 3 O(CH 2 ) 2 OCH 3
Melting
point
[°C]
-58
MESG
[mm]
(= 2,5-Dioxahexane)
Relative
density
(air = 1)
3,10
T1
T3
T3
T3
T4
Temp.
class
(= Dimethylglycol)
IIA
IIA
IIA
IIB
IIB
Equip.
group
(= Ethylene glycol dimethyl ether)
(= Monoglyme)
d
d
a
a
a
Method of
class.
110-71-4
Name
formula
1,2-Dimethoxyethane
– 56 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
g 100 – g 0
[mm]
CASNo.
52
111-43-3
CH 3 (CH 2 ) 2 O
(= 1-propoxy-propane)
(= Dipropylether)
1,1´-Oxybispropane
CH 3 (CH 2 ) 4 CH 3
(= Pentylcarbinol)
(= 1-Hydroxyhexane)
3,53
3,50
-122
-45
90
157
156
139
<–5
60
51
26
33
1,18
1,1
1,2
0,8
1,4
11,8
12,7
3,60
15,2
50
47
68
42
65
502
642
190
550
175
280
380
256
275
3,0
Most inc.
mixture
[Vol.-%]
(= Hexyl alcohol)
-62
-70
129
410
0,85
0,97
1,12
0,92
0,75
0,06
g 100 – g 0
[mm]
111-27-3
(= Amylcarbinol)
1-Hexanol
CH 3 COOCH 2 CH 2 OCH 2 CH 3
(= Glycol monoethyl ether acetate)
4,56
4,45
-5
1096
0,53
MIC ratio
(= Ethylene glycol monoethyl
etheracetate)
(= 2-Ethoxyethyl acetate)
Acetic acid 2-ethoxy-ethyl ester
((CH 3 ) 2 CHCH 2 ) 2 NH
(= Diisobutylamine)
2-Methyl-n-(2-methylpropyl)-1propanamine
.
OCH 2 CH 2 NHCH 2 CH 2
3,00
121
T4
T3
T2
T3
T3
T2
IIB
IIB
IIA
IIA
IIA
IIB
a
a
a
d
a
b
60079-20-1 © IEC:2010
111-15-9
110-96-3
Name
formula
(= Tetrahydro-1,4-oxazine)
29,0
Upper
flam. limit
[Vol.-%]
(= Diethylene oximide)
Lower
flam. limit
[Vol.-%]
3,2
Lower
flam. limit
[g/m 3 ]
110-91-8
Flash
point
[°C]
45
Upper
flam. limit
[g/m 3 ]
(= Diethylene imidoxide)
Boiling
point
[°C]
115
Auto ign.
temp.
[°C]
.
Melting
point
[°C]
62
MESG
[mm]
Morpholine
Relative
density
(air = 1)
3,11
Temp.
class
OCH 2 OCH 2 OCH 2
Equip.
group
(= Trioxymethylene)
Method of
class.
110-88-3
1,3,5-Trioxane
IS/IEC 60079-20-1 : 2010
– 57 –
CASNo.
53
111-84-2
111-76-2
111-70-6
CH 3 (CH 2 ) 7 CH 2
(= Nonyl hydride)
Nonane
CH 3 (CH 2 ) 3 OCH 2 OH
(= Butylglykol)
(= Butyl cellosolve)
(= Ethylene glycol monobutyl ether)
2-Butoxyethanol
CH 3 (CH 2 ) 5 CH 2 OH
(= 1-hydroxyheptane)
(= enanthic alcohol)
(= heptyl alcohol)
(= hexylcarbinol)
Heptan-1-ol
NC(CH 2 ) 4 CN
(= Tetramethylene cyanide)
(= Adiponitrile)
4,43
4,1
4,03
1,00
-51
-75
-34
2
151
171
175
295
30
61
60
93
13
0,7
1,1
0,9
1,70
0,8
Lower
flam. limit
[Vol.-%]
111-69-3
126
5,6
12,7
5,0
6,5
Upper
flam. limit
[Vol.-%]
(= 1,4-Dicyanobutane)
-57
37
43
38
Lower
flam. limit
[g/m 3 ]
Hexanedinitrile
3,93
301
311
Upper
flam. limit
[g/m 3 ]
CH 3 (CH 2 ) 6 CH 3
Auto ign.
temp.
[°C]
205
238
275
550
206
279
1,94
Most inc.
mixture
[Vol.-%]
111-65-9
Flash
point
[°C]
23
0,94
0,94
1,00
MESG
[mm]
.
Boiling
point
[°C]
135 to
137
0,02
g 100 – g 0
[mm]
n-Octane
Melting
point
[°C]
-37
T3
T3
T3
T1
T3
T3
Temp.
class
CH 2 (CH 2 ) 5 NH
Relative
density
(air = 1)
3,41
IIA
IIA
IIA
IIA
Equip.
group
(= Azepane)
d
a
a
a
Method of
class.
111-49-9
Name
formula
Hexahydro-1H-acepine
– 58 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
MIC ratio
CASNo.
54
112-58-3
112-41-4
112-34-5
112-30-1
(CH 3 (CH 2 ) 5 ) 2 O
(= Dihexyl Ether)
1,1´-Oxybishexane
CH 3 (CH 2 ) 9 CH=CH 2
1-Dodecene
CH 3 (CH 2 ) 3 OCH 2 CH 2 OCH 2 CH 2 OH
(= Diglycol monobutyl ether)
(= Butyldiglykol)
2-(2-Butoxyethoxy) ethanol
CH 3 (CH 2 ) 9 OH
(= Decyl alcohol)
1-Decanol
C 4 H 9 O(CH 2 ) 2 OCOCH 3
(= Ethylene glycol monobutyl
etheracetate)
6,43
5,80
5,59
5,30
5,52
4,62
-43
-32
-68
7
64
-80 to
-76
227
213
231
230
192
202
75
77
>100
82
71
94
0,6
0,85
0,7
0,9
1,3
5,5
8,9
42
58
73
49
385
187
225
225
288
340
190
270
1,11
0,94
1,05
T4
T3
T3
T3
T2
T4
T3
IIA
IIA
IIA
IIA
d
a
a
d
60079-20-1 © IEC:2010
112-07-2
2-Butoxyethanol acetate
CH 3 CH 2 OCH 2 CH 2 OCH 2 CH 2 OH
(= 3,6-Dioxaoctan-1-ol)
7,0
Upper
flam. limit
[Vol.-%]
(= Diethylene glycol monoethyl ether)
Lower
flam. limit
[Vol.-%]
0,9
Lower
flam. limit
[g/m 3 ]
111-90-0
Flash
point
[°C]
81
Upper
flam. limit
[g/m 3 ]
2- (2-Ethoxyethoxy) ethanol
Boiling
point
[°C]
195
Auto ign.
temp.
[°C]
CH 3 (CH 2 ) 6 CH 2 OH
Melting
point
[°C]
-60
MESG
[mm]
(= n-Octyl alcohol)
Relative
density
(air = 1)
4,50
Temp.
class
(= 1-Hydroxyoctane)
Equip.
group
(= Heptyl carbinol)
Method of
class.
111-87-5
Name
formula
(= Caprylic alcohol)
1-Octanol
IS/IEC 60079-20-1 : 2010
– 59 –
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
55
123-05-7
121-69-7
121-44-8
116-14-3
115-11-7
Name
formula
CH 3 CH(CH 2 CH 3 )(CH 2 ) 3 CHO
(= 2-Ethylhexaldehyde)
2-Ethylhexanal
C 6 H 3 (CH 3 ) 2 NH 2
(= N,N-Dimethylaniline)
N,N-Dimethylbenzeneamine
(CH 3 CH 2 ) 3 N
(= Triethylamine)
N,N-Diethylethanamine
CF 2 =CF 2
Tetrafluoroethylene
(CH 3 ) 2 C=CH 2
(= 2-Methylpropene)
(= Isobutene)
(= Isobutylene)
(= 1,1-Dimethylethylene)
2-Methylprop-1-ene
(CH 3 ) 2 O
(= Methoxymethane)
4,4
4,17
3,50
3,40
1,93
1,59
-50
2
-115
-143
-140
-142
163
194
89
-76
-7
-25
42
62
–8
gas
gas
gas
0,9
1,2
1,2
10,0
1,6
2,7
7,2
7,0
8,0
59,0
10,0
32,0
60
51
420
37
51
35
Lower
flam. limit
[g/m 3 ]
(= W ood ether)
Upper
flam. limit
[Vol.-%]
11,1
350
339
2245
235
610
194
Upper
flam. limit
[g/m 3 ]
(= Dimethylether)
Lower
flam. limit
[Vol.-%]
2,0
185
370
215
255
483
240
455
Auto ign.
temp.
[°C]
115-10-6
Flash
point
[°C]
gas
7,0
4,8
Most inc.
mixture
[Vol.-%]
(= Methyl ether)
Boiling
point
[°C]
-48
0,60
1,00
0,84
0,91
MESG
[mm]
Oxybismethane
Melting
point
[°C]
-185
0,06
0,02
g 100 – g 0
[mm]
CH 2 =CHCH 3
Relative
density
(air = 1)
1,50
T4
T2
T3
T3
T1
T3
T1
Temp.
class
(= Propylene)
IIA
IIB
IIA
IIB
IIA
Equip.
group
(= Methylethylene)
d
a
a
a
a
Method of
class.
115-07-1
Propene
– 60 –
60079-20-1
© IEC:2010
IS/IEC 60079-20-1
: 2010
MIC ratio
CASNo.
56
CH 3 COOCH 2 (CH 2 ) 2 CH 3
(= Butyl ethanoate)
(= n-Butyl ester of acetic acid)
(= n-Butyl acetate)
Acetic acid n-butyl ester
CH 3 CH 2 CH 2 CHO
(= Butyl aldehyde)
(= Butyraldehyde)
1-Butanal
OCH(CH 3 )OCH(CH 3 )OCH(CH 3 )
(= Paraldehyde)
(= Paracetaldehyde)
(=p-Acetaldehyde)
4,01
2,48
4,56
-77
-97
12
127
75
124
140
22
-12
27
34
42
1,2
1,7
1,3
1,7
1,3
8,5
12,5
10,5
6,9
58
51
72
71
47
88
408
378
385
336
390
205
235
340
339
680
130
mg/l
3,3
1,04
0,92
1,01
0,95
1,06
0,86
0,15
1,08
MIC ratio
123-86-4
123-72-8
123-63-7
2,4,6-Trimethyl-1,3,5-trioxane
-23
131
1,8
Most inc.
mixture
[Vol.-%]
CH 3 COCH 2 COCH 3
3,50
-117
58
188
g 100 – g 0
[mm]
(= Acetylacetone)
Pentane-2,4-dione
3,03
166
47
T2
T3
T3
T2
T2
T1
T4
IIA
IIA
IIA
IIA
IIA
IIA
IIB
c
a
a
a
a
d
a
60079-20-1 © IEC:2010
123-54-6
(CH 3 ) 2 CH (CH 2 ) 2 OH
(= Isoamyl alcohol)
3-Methylbutan-1-ol
CH 3 COCH 2 C(CH 3 ) 2 OH
-47
Upper
flam. limit
[Vol.-%]
123-51-3
Name
formula
4,00
Lower
flam. limit
[Vol.-%]
2,0
Lower
flam. limit
[g/m 3 ]
(= 2-Methyl-2-pentanol-4-one)
Flash
point
[°C]
<–26
Upper
flam. limit
[g/m 3 ]
(= Diacetone alcohol)
Boiling
point
[°C]
49
Auto ign.
temp.
[°C]
123-42-2
Melting
point
[°C]
-81
MESG
[mm]
4-Hydroxy-4-methylpenta-2-one
Relative
density
(air = 1)
2,00
Temp.
class
CH 3 CH 2 CHO
Equip.
group
(= Propionic aldehyde)
Method of
class.
123-38-6
1-Propanal
IS/IEC 60079-20-1 : 2010
– 61 –
CASNo.
57
140-88-5
138-86-3
126-99-8
124-40-3
(n-Decane)
124-18-5
CH 2 =CHCOOCH 2 CH 3
(= Ethyl propenoate)
(= Ethyl acrylate)
(= Acrylic acid ethyl ester)
2-Propenoic acid ethyl ester
CH 3 CCHCH 2 CH(C(CH 3 )=CH 2 )CH 2 CH 2
1-Methyl-4-(1-methylethenyl)
cyclohexene
CH 2 =CClCH=CH 2
(= Chloroprene)
2-Chloro-1,3-butadiene
(CH 3 ) 2 NH
(= Dimethylamine)
n-Methylmethanamine
C 10 H 22
Decane
(mixed isomers)
CH 3 (CH 2 ) 6 CHO
3,45
4,66
3,0
1,55
4,90
-75
-89
-92
100
175
60
7
171
9
43
-29
gas
46
52
1,4
0,7
1,9
2,8
0,7
14,0
6,1
20,0
14,4
5,6
Lower
flam. limit
[g/m 3 ]
59
39
53
41
51
588
348
272
332
813
Upper
flam. limit
[g/m 3 ]
12 to
15
Upper
flam. limit
[Vol.-%]
22,5
350
237
320
400
235
200
375
Auto ign.
temp.
[°C]
4,42
Lower
flam. limit
[Vol.-%]
1,4
4,3
120
mg/l
4,75
Most inc.
mixture
[Vol.-%]
(= Octaldehyde)
Flash
point
[°C]
11
0,86
1,18
1,15
1,05
0,70
MESG
[mm]
.
Boiling
point
[°C]
101
0,04
0,02
g 100 – g 0
[mm]
Octanal
Melting
point
[°C]
10
0,19
MIC ratio
OCH 2 CH 2 OCH 2 CH 2
Relative
density
(air = 1)
3,03
T2
T3
T2
T2
T3
T4
T2
Temp.
class
(= Diethylene ether)
IIB
IIA
IIA
IIA
IIA
IIB
Equip.
group
124-13-0
Name
formula
(= Diethylene dioxide)
a
a
a
a
a
a
Method of
class.
123-91-1
1,4-Dioxane
– 62 –
60079-20-1 © IEC:2010
IS/IEC 60079-20-1 : 2010
CASNo.
58
142-29-0
141-97-9
.
CH=CHCH 2 CH 2 CH
Cyclopentene
CH 3 COCH 2 COOCH 2 CH 3
(= Ethyl acetoacetate)
(= 1-Ethoxybutane-1,3-dione)
(= Acetoacetic acid ethyl ester)
3-Oxobutanoic acid ethyl ester
(CH 3 ) 2 CCHCOCH 3
(= Mesityl oxide)
4-Methylpent-3-en-2-one
CH 3 COOCH 2 CH 3
(= Ethyl ethanoate)
2,30
4,50
3,78
3,04
-135
-44
-59
-83
46
180
130
77
172
<–22
65
24
–4
85
1,48
1,0
1,6
2,0
9,5
7,2
12,8
41
54
64
73
519
289
470
309
350
306
470
410
268
4,7
Most inc.
mixture
[Vol.-%]
(= Ethyl acetate)
10
425
0,96
0,96
0,93
0,99
0,88
0,04
g 100 – g 0
[mm]
141-79-7
141-78-6
Acetic acid ethyl ester
NH 2 CH 2 CH 2 OH
2,10
63
T2
T2
T2
T1
T2
T3
IIA
IIA
IIA
IIA
IIA
IIB
a
a
a
a
d
a
60079-20-1 © IEC:2010
(= Monoethanolamine)
(= 2-Hydroxyethylamine)
(= Ethylolamine)
(= beta-Aminoethyl alcohol)
Upper
flam. limit
[Vol.-%]
9,9
Lower
flam. limit
[g/m 3 ]
141-43-5
Lower
flam. limit
[Vol.-%]
1,2
Upper
flam. limit
[g/m 3 ]
(= Ethanolamine)
Flash
point
[°C]
38
Auto ign.
temp.
[°C]
2-Aminoethanol
Boiling
point
[°C]
148
MESG
[mm]
CH 2 =CHCOOC 4 H 9
Melting
point
[°C]
-65
Temp.
class
(= Butyl-2-propenoate)
Relative
density
(air = 1)
4,41
Equip.
group
(= Butyl ester of acrylic acid)
(= n-Butyl acrylate)
Method of
class.
141-32-2
Name
formula
2-Propenoic acid butyl ester
(inhibited)
IS/IEC 60079-20-1 : 2010
– 63 –
MIC ratio
CASNo.
59
300-62-9
291-64-5
287-92-3
287-23-0
151-56-4
142-96-1
C 6 H 5 CH 2 CH(NH 2 )CH 3
(=1-Phenylpropan-2-amine)
(= Amphetamine)
(+-)-α-Methylbenzeneethanamine
.
CH 2 (CH 2 ) 3 CH 2
Cycloheptane
.
CH 2 (CH 2 ) 3 CH 2
(= Pentamethylene)
Cyclopentane
.
CH 2 (CH 2 ) 2 CH 2
(= Tertamethylene)
Cyclobutane
CH 3 CH 2 N
(= Aziridine)
(= Aminoethylene)
Ethylenimine
(CH 3 (CH 2 ) 3 ) 2 O
(= 1-Butoxybutane)
(= Dibutyl ether)
1,1´-Oxybisbutane
4,67
3,39
2,40
1,93
1,5
4,48
-8
-94
-91
-71
-95
200
119
49
13
55
141
<100
6
–37
gas
-11
25
4
1,1
1,4
1,8
3,3
0,9
1,2
6,7
54,8
8,5
9,1
44
41
42
48
50
275
460
376
281
Upper
flam. limit
[g/m 3 ]
105
Lower
flam. limit
[g/m 3 ]
35
320
320
175
260
204
Auto ign.
temp.
[°C]
-40
Upper
flam. limit
[Vol.-%]
6,7
2,6
2,3
Most inc.
mixture
[Vol.-%]
3,48
Lower
flam. limit
[Vol.-%]
0,85
1,01
0,86
0,95
0,91
MESG
[mm]
(CH 3 CH 2 CH 2 ) 2 NH
Flash
point
[°C]
-7
0,02
0,02
g 100 – g 0
[mm]
(= Dipropylamine)
Boiling
point
[°C]
98
0,48
0,88
MIC ratio
142-84-7
Melting
point
[°C]
-91
T2
T2
T4
T3
T3
Temp.
class
n-Propyl-1-propanamine
Relative
density
(air = 1)
3,46
IIA
IIA
IIA
IIA
ÎIB
IIB
IIA
IIA
Equip.
group
C 7 H 16
Heptane (mixed isomers)
d
d
d
d
b
c
a
c
Method of
class.
(nHeptane)
Name
formula
142-82-5
– 64 –
60079-20-1 © IEC:2010
IS/IEC 60079-20-1 : 2010
CASNo.
60
513-36-0
513-35-9
507-20-0
504-60-9
(CH 3 ) 2 CHCH 2 Cl
1-Chloro-2-methylpropane
(CH 3 ) 2 C=CHCH 3
(= Trimethylethylene)
(= Amylene)
2-Methylbut-2-ene
(CH 3 ) 3 CCl
2-Chloro-2-methylpropane
CH 2 =CH-CH=CH-CH 3
(= Piperylene)
Penta-1,3-diene
.
CH 2 (CH 2 ) 3 CHCH(CH 2 ) 3 CH 2
trans-Decahydronaphthalene
COS
Carbonyl sulfide
CH 3 (CH 2 ) 2 COF
(= Butyryl fluoride)
3,19
2,40
3,19
2,34
4,76
2,07
3,10
2,90
-131
-134
-27
-30
-139
-111
69
38
51
41
187
-50
66
-47
-51
<–14
–53
<–18
<–31
54
gas
<–14
./.
./.
2,0
1,3
1,2
0,7
6,5
2,6
6,8
15,3
8,8
6,6
9,4
4,9
28,5
17,6
27,0
75
37
35
40
160
95
234
502
340
189
261
284
700
605
904
416
290
541
361
288
209
440
714
319
483
1,25
0,96
1,40
0,97
1,35
1,14
>2,00
1,40
1,22
T2
T3
T1
T2
T3
T3
T2
T1
T2
T1
IIA
IIA
IIA
IIA
IIA
IIA
IIA
IIA
IIA
IIA
a
a
a
a
d
a
a
a
a
a
60079-20-1 © IEC:2010
493-02-7
463-58-1
461-53-0
Butanoyl fluoride
CF 3 CH 3
(= Methylfluoroform)
Melting
point
[°C]
420-46-2
Name
formula
1,1,1-Trifluoroethane
Relative
density
(air = 1)
2,83
Boiling
point
[°C]
CF 2 =CFH
Upper
flam. limit
[Vol.-%]
Trifluoroethylene
Flash
point
[°C]
126
Upper
flam. limit
[g/m 3 ]
359-11-5
Lower
flam. limit
[Vol.-%]
1,6
Lower
flam. limit
[g/m 3 ]
47
Auto ign.
temp.
[°C]
152 to
162
MESG
[mm]
6,70
Temp.
class
C 6 H 5 OCF 2 CF 2 H
Equip.
group
1,1,2,2-Tetrafluoroethoxybenzene
Method of
class.
350-57-2
IS/IEC 60079-20-1 : 2010
– 65 –
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
61
540-88-5
CH 3 COOC(CH 3 ) 3
(= tert-Butyl ester of acetic acid)
(= tert-Butyl acetate)
Acetic acid 1,1-dimethylethyl ester
(CH 3 ) 2 CHCH 2 C(CH 3 ) 3
(= iso-Octane)
4,00
3,90
2,10
3,55
2,70
3,52
-107
-139
-57
-123
-45
97
99
7
48 to
60
47
142
64
1
–12
gas
–10
–32
41
<–16
1,3
0,7
2,0
9,7
2,4
1,4
7,3
6,0
10,1
12,8
11,1
9,70
34
50
391
78
47
284
255
516
365
325
435
413
190
440
520
420
318
2
Most inc.
mixture
[Vol.-%]
(= iso-Butyltrimethyl methane)
2,2,4-Trimethylpentane
CH 3 OCH 2 CH 3
(= Methoxythane)
Ethyl methyl ether
ClCH=CHCl
(= sym-Dichloroethylene)
(= trans-Acetylene dichloride)
(= Acetylene dichloride)
1,2-Dichloroethene
CH 3 CH 2 CH 2 Cl
1-Chloropropane
C 6 H 5 C≡CH
(= Phenyl ethyne)
(= Ethynylbenzene)
-89
470
1,04
3,91
0,86
0,95
0,04
g 100 – g 0
[mm]
540-84-1
540-67-0
540-59-0
540-54-5
536-74-3
Phenylacetylene
2,83
7,0
Lower
flam. limit
[g/m 3 ]
.
Lower
flam. limit
[Vol.-%]
0,8
Upper
flam. limit
[g/m 3 ]
OC(CH 3 ) CHCHCH
Flash
point
[°C]
51
MESG
[mm]
534-22-5
Boiling
point
[°C]
176
Upper
flam. limit
[Vol.-%]
.
Melting
point
[°C]
-26
Auto ign.
temp.
[°C]
2-Methylfuran
Relative
density
(air = 1)
4,15
T2
T2
T4
T2
T1
T2
T2
T1
Temp.
class
CHCHCH(CH 3 ) C(CH3)C(CH 3)
IIA
IIB
IIA
IIA
IIB
IIA
IIA
Equip.
group
(= Hemimellitene)
a
d
a
a
a
a
d
Method of
class.
526-73-8
Name
formula
1,2,3-Trimethylbenzene
– 66 –
60079-20-1 © IEC:2010
IS/IEC 60079-20-1 : 2010
MIC ratio
CASNo.
62
590-86-3
590-18-1
590-01-2
583-48-2
(CH 3 ) 2 CHCH 2 CHO
(= 3-Methylbutyraldehyde)
(= iso-Valeraldehyde)
(= iso-Pentanal)
3-Methylbutanal
CH 3 CH=CHCH 3
2-Butene (cis)
C 2 H 5 COOC 4 H 9
(= Butyl propionate)
(= Butyl propanoate)
(= Propanoic acid, butyl ester)
Propionic acid butyl ester
CH 3 CH 2 CH(CH 3 )CH(CH 3 )CH 2 CH 3
3,4-Dimethylhexane
CH 2 =C(CH 3 )CH 2 Cl
3-Chloro-2-methyl-1-propene
CH 3 COF
2,97
1,93
4,48
3,87
3,12
2,14
-51
-139
-90
-80
-84
-63
92
4
146
118
72
21
113
-5
gas
38
2
–16
<–17
–1
1,3
1,6
1,0
0,8
2,1
5,6
1,3
1,27
13
10,0
7,7
6,5
19,9
6,5
60
40
53
38
77
142
52
104
228
409
310
505
261
207
325
405
305
476
434
433
185
465
0,98
0,89
0,93
1,16
1,54
1,15
0,92
0,99
T3
T2
T2
T2
T1
T2
T2
T4
T1
IIA
IIB
IIA
IIA
IIA
IIA
IIA
IIA
IIA
a
a
a
d
a
a
a
a
a
60079-20-1 © IEC:2010
563-47-3
557-99-3
.
Acetyl fluoride
3,40
44
Upper
flam. limit
[Vol.-%]
SC(CH 3 ) CHCHCH
2-Methylthiophene
173
Upper
flam. limit
[g/m 3 ]
554-14-3
(CH 3)2CH(CH 2)2O(CH 2 )2 CH (CH 3) 2
-96
Lower
flam. limit
[Vol.-%]
(= 3-Methyl-1-(3-methyl-butoxy)-butane)
5,45
Lower
flam. limit
[g/m 3 ]
(= Di(3-methyl-1-butyl) ether)
–50
Flash
point
[°C]
(= Diisopentylether)
Boiling
point
[°C]
40
Auto ign.
temp.
[°C]
.
Melting
point
[°C]
-97
MESG
[mm]
1,1´-Oxybis(3-methylbutane)
Relative
density
(air = 1)
2,30
Temp.
class
CH 2 CH=CHCH=CH
Equip.
group
544-01-4
Name
formula
1,3-Cyclopentadiene
Method of
class.
542-92-7
IS/IEC 60079-20-1 : 2010
– 67 –
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
63
625-55-8
624-83-9
623-36-9
598-61-8
592-77-8
Name
formula
HCOOCH(CH 3 ) 2
(= 1-Methylethyl formate)
(= Formic acid isopropyl ester)
(= iso-Propyl formate)
Formic acid-1-methylethyl ester
CH 3 NCO
(= Methyl ester of isocyanic acid)
Methylisocyanate
CH 3 CH 2 CHC(CH 3 )COH
2-Methylpent-2-enal
.
CH 3 CH(CH 2 ) 2 CH 2
Methylcyclobutane
CH 3 (CH 2 ) 3 CH=CHCH 3
Hept-2-ene
CH 2 =CHCH 2 OOCCH 3
(= Allyl acetate)
3,03
1,96
3,78
2,41
3,40
3,45
-94
-109
103
68
38
136
36
98
<–6
–35
30
<0
13
5,3
1,46
1,7
26,0
10,1
9,4
Upper
flam. limit
[Vol.-%]
(= Acetic acid, allyl ester)
Lower
flam. limit
[Vol.-%]
1,2
123
58
69
50
Lower
flam. limit
[g/m 3 ]
(= Acetoxypropene)
Flash
point
[°C]
23
605
420
392
Upper
flam. limit
[g/m 3 ]
591-87-7
Boiling
point
[°C]
128
469
517
206
263
348
420
Auto ign.
temp.
[°C]
Acetic acid-2-propenyl ester
Melting
point
[°C]
-56
1,10
1,21
0,84
0,97
0,96
0,98
MESG
[mm]
CH 3 CO(CH 2 ) 3 CH 3
Relative
density
(air = 1)
3,46
T1
T1
T3
T3
T2
T2
Temp.
class
(= Methyl butyl ketone)
IIA
IIA
IIB
IIA
IIA
IIA
IIA
Equip.
group
(= Hexan-2-one)
a
a
a
d
a
a
a
Method of
class.
591-78-6
2-Hexanone
– 68 –
60079-20-1 © IEC:2010
IS/IEC 60079-20-1 : 2010
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
64
646-06-0
645-62-5
.
OCH 2 CH 2 OCH 2
(= ethylene glycol formal)
(= formaldehyde ethylene acetal)
(= glycolformal)
1,3-Dioxolane
CH 3 CH(CH 2 CH 3 )=CH(CH 2 ) 2 CH 3
(= Ethylpropylacrolein)
2-Ethyl-2-hexenal
CO
Carbon monoxide (water saturated air at
18° C; see 5.2.3)
CH 3 CH 2 O(CH 2 ) 2 OCH 2 CH 3
(= 3,6-Dioxaoctane)
2,55
4,34
0,97
4,07
-26
-74
74
175
122
–5
40
gas
16
2,3
10,9
30,5
74,0
7,5
70
126
55
935
870
387
245
184
607
170
360
40,8
110
mg/l
0,86
0,84
0,81
1,02
0,03
g 100 – g 0
[mm]
630-08-0
629-14-1
1,0
Lower
flam. limit
[g/m 3 ]
1,2-Diethoxyethane
25
Upper
flam. limit
[g/m 3 ]
CH 3 COO(CH 2 ) 4 CH 3
149
Auto ign.
temp.
[°C]
(= Primary amyl acetate)
Melting
point
[°C]
-71
T3
T4
T1
T4
T2
IIB
IIB
IIB
IIB
IIA
IIA
d
a
a
a
a
d
60079-20-1 © IEC:2010
(= Pentyl ester of acetic acid)
4,48
Most inc.
mixture
[Vol.-%]
(= 1-Pentanol acetate)
7,5
MESG
[mm]
(= Pentyl Acetate)
11,0
Temp.
class
628-63-7
(= Amyl acetic ester)
(= n-Amyl acetate)
Acetic acid penthyl ester
23
Flash
point
[°C]
CH 3 COOCH(CH 3 )(CH 2 ) 2 CH 3
Boiling
point
[°C]
134
Lower
flam. limit
[Vol.-%]
(= 2-Pentyl ester of acetic acid)
Relative
density
(air = 1)
4,50
Upper
flam. limit
[Vol.-%]
(= 2-Pentanol acetate)
Equip.
group
(= 1-Methylbutyl acetate)
(= sec-Amyl acetate)
Method of
class.
626-38-0
Name
formula
Acetic acid 1-methylbutyl ester
IS/IEC 60079-20-1 : 2010
– 69 –
MIC ratio
CASNo.
65
872-05-9
814-68-6
765-43-5
764-48-7
CH 2 (CH 2 ) 8 CH 3
1-Decene
CH2 CHCOCl
(= Acrylic acid chloride)
(= Propenoyl chloride)
Acryloyl chloride
.
CH 2 CH 2 CHCOCH 3
(= Cyclopropyl methyl ketone)
(= acetylcyclopropane)
1-Cyclopropyl ethanone
CH 2 =CH-OCH 2 CH 2 OH
(= 2-Ethenoxyethanol)
2-Vinyloxyethanol
CH 2 =CHCHClCH 2 Cl
4,84
3,12
2,90
3,04
4,31
5,45
-66
-68
-51
-69
172
74
114
143
123
180
47
–8
15
52
31
57
./.
0,55
2,68
1,7
1,3
4,7
5,7
18,0
7,2
Upper
flam. limit
[Vol.-%]
3,4-Dichlorobut-1-ene
(CH 3 (CH 2 ) 4 ) 2 O
(= Dipentylether)
1,1´-Oxybispentane
-29
220
58
66
184
662
368
Upper
flam. limit
[g/m 3 ]
760-23-6
693-65-2
3,31
Lower
flam. limit
[Vol.-%]
CF 3 CH=CH 2
Lower
flam. limit
[g/m 3 ]
677-21-4
33
Flash
point
[°C]
.
Boiling
point
[°C]
127
235
463
452
250
469
171
490
262
Auto ign.
temp.
[°C]
3,3,3-Trifluoroprop-1-ene
Melting
point
[°C]
-7
1,06
0,97
0,86
1,38
1,75
0,84
MESG
[mm]
CH 2 =CCH 2 C(O)O
Relative
density
(air = 1)
2,90
T3
T1
T1
T3
T1
T4
T1
T3
Temp.
class
(= Diketene)
IIA
IIA
IIB
IIA
IIA
IIB
Equip.
group
(= But-3-en-3-olide)
(= Acetyl ketene)
a
a
a
a
a
a
Method of
class.
674-82-8
Name
formula
4-Methylene-2-oxetanone
– 70 –
60079-20-1 © IEC:2010
IS/IEC 60079-20-1 : 2010
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
66
1634-04-4
1498-64-2
CH 3 OC(CH 3 ) 3
(= Methyl tert-butylether)
(= tert-Butyl methylether)
2-Methoxy-2-methylpropane
C 2 H 5 OPSCl 2
O-Ethyl phosphoro dichloridothioate
3,03
7,27
0,07
-109
-259
55
-253
–27
75
gas
81
90 to
98
35
<0
1,5
4,0
1,1
1,0
1,25
1,18
8,4
77,0
7,0
8,6
54
3,4
50
50
35
50
310
63
355
239
385
234
560
557
500 to
545
284
352
345
27
Most inc.
mixture
[Vol.-%]
H2
3,73
4,2
4,17
4,48
42
<–14
1,00
1,20
0,29
0,90
0,76
1,01
1,31
0,94
0,01
g 100 – g 0
[mm]
Hydrogen
CH 3 C 6 H 4 OH
Cresol
(mixed isomers)
C 6 H 3 (CH 3 ) 2 NH 2
(= Xylidine)
Xylidenes (Mixture of isomers)
.
OCH 2 OCH(CH 3 )C(CH 3 ) 2 CH 2
4,4,5-Trimethyl-1,3-dioxane
-135
86
469
510
0,25
MIC ratio
1333-74-0
(o-Cresol)
1319-77-3
1300-73-8
1122-03-8
2,35
-80
Upper
flam. limit
[Vol.-%]
.
3,50
27
Upper
flam. limit
[g/m 3 ]
C(=CH 2 )(CH 2 ) 2 CH 2
Methylenecyclobutane
(CH 3 ) 2 C(OCH 3 )CH 2 CH 3
(= Methyl tert-pentyl ether)
(= 1,1-Dimethylpropyl methyl ether)
126
106
T2
T3
T1
T1
T1
T3
T2
T2
T1
T1
IIA
IIA
IIC
IIA
IIA
IIB
IIA
IIA
IIA
a
a
c
d
a
a
a
a
a
60079-20-1 © IEC:2010
1120-56-5
994-05-8
2-Methoxy-2-methyl-butane
4,31
2,5
Lower
flam. limit
[Vol.-%]
CH 3 CCI=CHCH 2 Cl
Flash
point
[°C]
17
Lower
flam. limit
[g/m 3 ]
1,3-Dichloro-2-butene
Boiling
point
[°C]
99 to
102
Auto ign.
temp.
[°C]
926-57-8
Melting
point
[°C]
-60
MESG
[mm]
CH 2 CCH 3 COCl
Relative
density
(air = 1)
3,60
Temp.
class
(= 2-Methyl-2-propenoyl chloride)
Equip.
group
(= Methacrylic acid chloride)
Method of
class.
920-46-7
Name
formula
Methacryloyl chloride
IS/IEC 60079-20-1 : 2010
– 71 –
CASNo.
67
2673-15-6
2426-08-6
2032-35-1
1738-25-6
H(CF 2 CF 2 ) 2 C(CH 3 ) 2 OH
2,2,3,3,4,4,5,5-Octafluoro-1,1dimethylpentan-1-ol
.
CH 3 CH 2 (CH 2 ) 3 O CH 2 CHCH 2 O
(CH 2 ) 3 OCH 2
(= 1,2-Epoxy-3-butoxypropane)
(= Butyl 2,3- Epoxypropylether)
(= n-Butyl glycidil ether)
(Butoxymethyl)oxirane
(CH 3 CH 2 O) 2 CHCH 2 Br
2-Bromo-1,1-diethoxyethane
(CH 3 ) 2 NHCH 2 CH 2 CN
3-(Dimethylamino) propiononitrile
(C 2 H 5 ) 2 SiCl 2
(= Diethyl-dichloro-silane)
Dichlorodiethylsilane
(CH 3 ) 2 CHONO 2
(= Propane-2-nitrate)
(= Nitric acid isopropyl ester)
8,97
4,48
7,34
3,38
5,42
3,62
-43
-96
-113
165
170 to
172
170
130
101
132
61
44
57
50
24
11
<24
1,57
3,4
2,0
0,9
100
6,6
6,8
62
233
75
42
42
3738
310
280
465
215
175
317
175
238
262
1,50
0,78
1,00
1,14
0,45
MESG
[mm]
1719-53-5
1712-64-7
(= iso-Propyl nitrate)
Nitric acid-1-methylethyl ester
3,87
Lower
flam. limit
[Vol.-%]
1,05
Upper
flam. limit
[Vol.-%]
.
Flash
point
[°C]
<5
Lower
flam. limit
[g/m 3 ]
CH 3 CH 2 CH(CH 2 ) 4 CH 2
Boiling
point
[°C]
103
Upper
flam. limit
[g/m 3 ]
.
Melting
point
[°C]
-138
Auto ign.
temp.
[°C]
Ethylcyclohexane
Relative
density
(air = 1)
3,40
T1
T3
T4
T2
T4
T3
T3
Temp.
class
CH 3 CH 2 CH(CH 2 ) 3 CH 2
IIA
IIB
IIA
IIA
IIC
IIB
IIA
IIA
Equip.
group
1678-91-7
Name
formula
Ethylcyclopentane
a
a
a
a
a
d
d
d
Method of
class.
1640-89-7
– 72 –
60079-20-1 © IEC:2010
IS/IEC 60079-20-1 : 2010
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
CASNo.
68
HOCH 2 COO(CH 2 ) 3 CH 3
(= Butyl-2-hydroxyacetate)
4,45
6,41
4,16
6,56
-26
-147
-75
187
135
172
71
102
61
45
61
33
<–16
8
2,4
2,0
0,78
1,2
2,1
5,8
7,7
16,0
182
98
60
42
62
451
272
470
357
440
165
212
230
4,2
Most inc.
mixture
[Vol.-%]
(= Butyl glycolate)
Hydroxyacetic butylester
CH 2 =CHCOOCH 2 CF 2 CF 2 H
(= 2,2,3,3-Tetrafluoro propyl prop-2enoate)
(= Acrylic acid 2,2,3,3-tetrafluoro-propyl
ester)
2,2,3,3-Tetrafluoropropyl acrylate
CH 3 CO(CH 2 ) 3 Cl
5-Chloro-2-pentanone
(CH 3 CH 2 O) 2 CHCH 2 CH(CH 3 CH 2 O)CH 3
1,1,3-Triethoxybutane
2,90
2,41
8,5
0,88
1,18
1,10
0,95
0,81
1,07
1,46
0,02
g 100 – g 0
[mm]
7397-62-8
7383-71-3
5891-21-4
5870-82-6
.
CH 3 CH 2 CH(CH 2 ) 2 CH 2
Ethylcyclobutane
CH 3 CH=CHCHO
(= Propylene aldehyde)
Melting
point
[°C]
(= beta-Methyl acrolein)
(= Crotonaldehyde)
1,9
390
0,98
T2
T2
T4
T3
T3
T2
IIB
IIA
IIA
IIA
IIA
IIB
IIA
IIA
a
a
a
a
d
a
a
a
60079-20-1 © IEC:2010
4806-61-5
.
2,0
Upper
flam. limit
[g/m 3 ]
4170-30-3
Name
formula
2-Butenal
Relative
density
(air = 1)
CH 2 ClCH 2 CHCHOCH 2 Cl
Upper
flam. limit
[Vol.-%]
(= 2,3-bis(chloromethyl) oxirane)
Boiling
point
[°C]
185
MIC ratio
3583-47-9
Flash
point
[°C]
1,4-Dichloro-2,3 Epoxybutane
Lower
flam. limit
[Vol.-%]
1,6
Lower
flam. limit
[g/m 3 ]
./.
Auto ign.
temp.
[°C]
197
MESG
[mm]
9,93
Temp.
class
CH 2=C(CH 3 )COOCH 2 (CF2)6 H
Equip.
group
2,2,3,3,4,4,5,5,6,6,7,7Dodecafluoroheptyl methacrylate
Method of
class.
2993-85-3
IS/IEC 60079-20-1 : 2010
– 73 –
CASNo.
69
25639-42-3
25377-83-7
20260-76-8
17639-76-8
8008-20-6
8006-64-2
8006-61-9
Name
formula
C 7 H 13 OH
(= Hexahydrocresol)
(= Hexahydromethyl phenol)
Methylcyclohexanol (mixed isomers)
C 8 H 16
Octene (mixed isomers)
.
NC(CH 3 )CHCHC(CH 2 =CH)CH
2-Methyl-5-vinylpyridine
CH 3 CH(CH 3 O)COOCH 3
Methyl-2-methoxypropionate
(= Fuel Oil No. 1)
(= Diesel Oil No. 1)
Kerosene
Turpentine oil
(= Petrol)
(= Natural gasoline)
(= Motor fuel)
Gasoline
H2S
3,93
3,66
4,10
4,06
./.
3,0
-50
-50 to
-60
-88
155 to
180
42 (at
200
mbar)
154 to
170
-60
68
–18
61
48
38 to
72
35
-46
gas
0,9
1,2
0,7
0,8
1,4
4,0
5,9
5,0
7,6
45,5
42
58
57
107
Lower
flam. limit
[g/m 3 ]
1,19
Upper
flam. limit
[Vol.-%]
33,6
270
650
240
Upper
flam. limit
[g/m 3 ]
(= Sulfuretted hydrogen)
Lower
flam. limit
[Vol.-%]
15,0
295
230
520
211
210
253
280
260
630
Auto ign.
temp.
[°C]
(= Sewer gas)
Flash
point
[°C]
gas
24,5
Most inc.
mixture
[Vol.-%]
7783-06-4
Boiling
point
[°C]
-33
0,95
1,30
1,07
0,83
3,18
MESG
[mm]
(= Hydrosulfuric acid)
Melting
point
[°C]
-78
6,85
MIC ratio
Hydrogen Sulfide
Relative
density
(air = 1)
0,59
T3
T3
T1
T3
T3
T3
T3
T3
T1
Temp.
class
NH 3
IIA
IIA
IIA
IIA
IIA
IIA
IIB
IIA
Equip.
group
(= Anhydrous ammonia)
d
a
a
a
d
d
a
a
Method of
class.
7664-41-7
Ammonia
– 74 –
60079-20-1 © IEC:2010
IS/IEC 60079-20-1 : 2010
g 100 – g 0
[mm]
CASNo.
70
No CAS
No CAS
68476-34-6
45102-52-1
35158-25-9
Coke oven gas
(see 5.2.1)
CF 3 CHClOCH 3
1-Chloro-2,2,2-trifluoroethyl methyl
ether
(=Fuel Oil No. 2)
(= Diesel fuel No. 2)
Diesel Oil No. 2
CH 2 =C(CH 2 )COOCH 2 CF 2 CF 2 H
(= 2,2,3,3-Tetrafluoro propyl 2methylprop-2-enoate)
2,2,3,3-Tetrafluoropropyl methacrylat
(CH 3 ) 2 CH-C(CHO)CHCH 2 CH(CH 3 ) 2
(= 2-Hexenal, 5-methyl-2-(1methylethyl))
2-iso-Propyl-5-methylhex-2-enal
H 3 COC 3 H 6 OC 3 H 6 OH
5,12
6,90
5,31
5,11
./.
-80
Melting
point
[°C]
(= Dipropylene glycol monomethyl
ether)
(2-Methoxymethylethoxy)propanol
poly(CH 2 O)
(= Formaldehyde polymer)
(= Polymerised formaldehyde)
(= Polyoxymethylene)
70 (at
68
mbar)
181
209
gas
4
52 to
96
74
70
8,0
0,6
1,9
1,1
7,0
6,5
10,9
73,0
484
155
69
43
249
430
254
to 285
389
188
270
380
447
432
2,80
1,18
>1,0
0,57
1,42
0,92
T2
T3
T2
T4
T3
T2
T2
T2
IIB or
IIC
IIA
IIA
IIA
IIB
IIA
IIA
d
a
a
a
a
a
a
60079-20-1 © IEC:2010
34590-94-8
30525-89-4
Paraformaldehyde
35
Upper
flam. limit
[Vol.-%]
7,6
Lower
flam. limit
[g/m 3 ]
5,51
Lower
flam. limit
[Vol.-%]
1,3
Upper
flam. limit
[g/m 3 ]
HCF 2 CF 2 C(CH 3 ) 2 OH
Flash
point
[°C]
<–18
Auto ign.
temp.
[°C]
.
Boiling
point
[°C]
73
MESG
[mm]
2,2,3,3-Tetrafluoro-1,1-dimethylpropan1-ol
Relative
density
(air = 1)
2,76
Temp.
class
(CH 3 )C=CHCH=CHCH 2
Equip.
group
29553-26-2
Name
formula
Methylcyclopentadiene-1,3
Method of
class.
26519-91-5
IS/IEC 60079-20-1 : 2010
– 75 –
MIC ratio
g 100 – g 0
[mm]
Most inc.
mixture
[Vol.-%]
T2
T3
Temp.
class
d
IIC
IIA
IIB
Equip.
group
T1
a
Method of
class.
a
– 76 –
MIC ratio
0,89
MESG
[mm]
1,14
g 100 – g 0
[mm]
255
Auto ign.
temp.
[°C]
347
Most inc.
mixture
[Vol.-%]
Upper
flam. limit
[g/m 3 ]
60
Lower
flam. limit
[g/m 3 ]
Upper
flam. limit
[Vol.-%]
24
2
66 to
132
Flash
point
[°C]
1,5
Lower
flam. limit
[Vol.-%]
Boiling
point
[°C]
./.
Mixture of CO + H 2
Water gas
No CAS
CH 2 =CHC=CHC(OH)(CH 3 ) 2
2-Methylhexa-3,5-dien-2-ol
No CAS
.
OCH 2 CH 2 C(=CH 2 ) CH 2 CH 2
No CAS
CASNo.
No CAS
Fuel oil-6
Name
formula
4-Methylenetetra-hydropyran
3,78
Relative
density
(air = 1)
3,79
Melting
point
[°C]
71
60079-20-1 © IEC:2010
IS/IEC 60079-20-1 : 2010
IS/IEC 60079-20-1 : 2010
60079-20-1 © IEC:2010
– 77 –
Bibliography
Further data on the properties of flammable materials may be found in the following
references and databases, some of which were used in the compilation of the tables shown in
Annex B.
IEC 60050(426), International Electrotechnical Vocabulary (IEV) – Part 426: Electrical
apparatus for explosive atmospheres
a) H. Phillips. A comparison of 'Standard' methods for the determination of Maximum
Experimental Safe Gap (MESG). Proceedings of the international symposium on the
explosion hazard classification of vapours, gases and dusts. National Academy Press
Publication.
b) M.G. Zabetakis. Flammability characteristics of combustible gases and vapours. US
Bureau of Mines Bulletin 627. 1965.
c) C.J. Hilado and S.W. Clark. Auto-ignition temperatures of organic chemicals. Chemical
Engineering. Sept. 4. 1972. p75 et seq.
d) Fire and related properties of industrial chemicals. Fire Protection Association (London).
Reprinted 1974.
e) Toxic and Hazardous Industrial Chemicals Safety Manual: for handling and disposal with
toxicity and hazard data. Tokyo The Institute, 1982.
f)
NMAB-447, 1987. Washington DC, USA. (Maximum experimental safe gap, apparatus
groups).
g) N. Marinovic. Elecktricni Uredajii Instalacije za Eksplozivnu Atmosferu Plinova i Para
(Handbook on explosion protected electrical equipment and installations for explosive gas
atmospheres - Apparatus Groups and Temperature Classes, >4500 titles of chemicals in
laguages: Latin, English, German, and French); in Croatian, Zagreb 1999.
th
h) Carl L. Yaws. Matheson Gas Data Book (7 Edition). 7, Mcgraw Hill Book Co, 2001.
th
Edition). National Fire Protection
i)
Fire protection guide on hazardous materials (13
Association (Boston. Mass.), 2002.
j)
E. Brandes and T. Redeker, Maximum experimental safe gap of binary and ternary
mixtures, Journal de Physique (Proceedings) Vol 12, No.7, p207, 2002.
k) Sax's Dangerous Properties of Industrial Materials (11
& Sons (2004).
l)
th
Edition) Volumes 1 -3, John Wiley
E. Brandes, W. Möller: Sicherheitstechnische Kenngrößen,
Flüssigkeiten und Gase, NW, Verlag für neue Wissenschaft, 2003.
Band
1
Brennbare
m) M. Molnarne, Th. Schendler, V. Schröder: Sicherheitstechnische Kenngrößen, Band 2:
Explosionsbereiche von Gasgemischen, 2003.
n) K. Nabert, G. Schön and T. Redeker. Sicherheitstechnische Kennzahlen brennbarer Gase
rd
und Dämpfe Band I und II. 3 Edition. Deutscher Eichverlag, 2004.
o) CHEMSAFE – Datenbank für sicherheitstechnische Kenngrössen (Database for Safety
Characteristics): www.dechema.de/chemsafe.html, Project by Bundesanstalt für
Materialforschung und –prüfung, DECHEMA, Physikalisch-Technische Bundesanstalt.
___________
72
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This Indian Standard has been developed from Doc No.: ETD 22 (6262).
Amendments Issued Since Publication
______________________________________________________________________________________
Amendment No.
Date of Issue
Text Affected
______________________________________________________________________________________
______________________________________________________________________________________
______________________________________________________________________________________
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