Analytiische
Qu
ualitä
ätssiche
erung
g
Bad
den--Würrttem
mberrg
Profic
ciency Test 5/13
- To
otal pettroleum
m hydro
ocarbo
ons -
provided
d by
AQS B
Baden-Württemberg at
nstitute for Sanitary Engineerin
E
Q
and
d Solid Wasste Manag
gement,
In
g, Water Quality
Un
niversity of Stuttgart
Band
dtäle 2, 705
569 Stuttga
art-Büsnau
u, Germanyy
on be
ehalf of the
e Ministry of the Environment, Climatee Protectio
on
and the
t Energ y Sector Baden-Wü
B
ürttemberg
g
Stuttg
gart, in January 2014
Responsibilities:
Scientific director AQS:
Dr.-Ing. Dipl.-Chem. Michael Koch
PT manager:
Dr.-Ing. Frank Baumeister
AQS Baden-Württemberg at
Institute of Sanitary Engineering,
Water Quality and Solid Waste Management
at University of Stuttgart
Bandtäle 2
70569 Stuttgart-Büsnau
Germany
http://www.aqsbw.de
Tel.: +49 (0)711 / 685-65446
Fax: +49 (0)711 / 685-63769
E-Mail: info@aqsbw.de
PT 5/13
page 1
LIST OF CONTENTS
1. GENERAL ........................................................................................................ 1 2. PT DESIGN ...................................................................................................... 1 3. SAMPLE PREPARATION ................................................................................ 1 4. SAMPLE DISTRIBUTION ................................................................................ 1 5. ANALYTICAL METHODS ................................................................................ 2 6. SUBMISSION OF RESULTS ........................................................................... 2 7. EVALUATION PROCEDURE .......................................................................... 2 8. ASSESSMENT ................................................................................................. 3 9. EVALUATION .................................................................................................. 3 10. EXPLANATION OF APPENDIX A ................................................................... 4 11. EXPLANATION OF APPENDIX B ................................................................... 5 12. EXPLANATION OF APPENDIX C ................................................................... 5 13. MEASUREMENT UNCERTAINTY ................................................................... 6 14. TRACEABLE REFERENCE VALUES ............................................................. 7 15. CHARACTERISTICS OF TOTAL PETROLEUM HYDROCARBONS ............. 9 16. INTERNET ........................................................................................................ 9
Appendix A
TOTAL PETROLEUM HYDROCARBONS .................................................... A-1
Appendix B
Appendix C
TOTAL PETROLEUM HYDROCARBONS .................................................... C-1
PT 5/13
page 1
1. General
This PT was provided by AQS Baden-Württemberg in the framework of the nationwide conducted waste water PT scheme in Germany. This PT scheme is based on
the requirements of the German Working Group on water issues of the Federal
States and the Federal Government (LAWA), which fixed the way of doing PTs in the
regulated environmental sector in its AQS-leaflet A-3 for the analysis of water, waste
water and sludge. These PTs are conducted together with several PT providers nationwide in Germany in a harmonised way.
The PT was executed and evaluated according to the requirements of DIN 38402A45 and ISO/TS 20612.
2. PT design
Each participant received the following samples:
•
3 x 2 samples in 1000-ml-ground flask with ground-in stopper for the determination of total petroleum hydrocarbons. The samples were preserved by cooling and acidification with hydrochloric acid (pH < 2,1).
12 different concentration levels/batches were produced. The concentration levels
were randomly allocated to the participants. It was ensured that each participant received one concentration level from the lower concentration range (level 1-4).
3. Sample preparation
The samples were based on an UV irradiated and filtered (5 µm and 1 µm) ground
water.
For the preparation of the samples, each bottle was spiked with a mixture of a commercially available diesel and a lubricating oil (ratio 1 :1).
The samples were cooled directly after preparation. The samples were dispatched
with freezer packs added to the packages.
4. Sample distribution
The samples were distributed on 09th September 2013 with a post express service
(DHL within Germany and TNT outside Germany).
PT 5/13
page 2
5. Analytical methods
The participants were restricted to use one analytical method according to the requirements of the “Technical Module Water” from the German Working group on water issues of the Federal States and the Federal Government (LAWA).
Following limit of quantification was required:
parameter
limit of quantification
in mg/l
total petroleum hydrocarbons
1
The samples had to be analysed in duplicate over the complete method (sample
preparation and measurement). The participants were asked to submit the results as
average values in mg/l with three significant digits.
6. Submission of results
The deadline for the submission of results was on 07th October 2013.
7. Evaluation procedure
The statistical evaluation was executed according to DIN 38402-A45 and ISO TS
20612 “Interlaboratory comparisons for proficiency testing of analytical chemistry laboratories”. From the participants’ results a relative standard deviation was calculated for each concentration level and parameter using the Q-method. The Hampel estimator was used for the calculation of the consensus mean which was used as as)
signed value xa. The standard deviation for proficiency assessment σ was taken for
the calculation of the zU-score according to DIN 38402-A45 or ISO TS 20612 respec)
tively. σ was limited as follows:
)
limit for σ in %
lower limit
upper limit
parameter
total petroleum hydrocarbons
10
30
A z-score was calculated for each measurement result derived from the assigned
value xa and the standard deviation for proficiency assessment:
result − x a
σˆ
The z-score was modified to a zU-score with a correction factor for proficiency assessment (as described in the standards mentioned above).
The tolerance limit was defined as IzUI=2.0.
z − score =
PT 5
5/13
page 3
8. A
Assessm
ment
The parameterr was asse
essed as su
uccessful, if more tha
an half of tthe values were correctly determin
ned (2 out of
o 3 valuess are within
n the tolera
ance limitss).
Not ssuccessfull were:
1
1) Values which
w
were
e not deterrmined (if the
t other samples
s
off this param
meters
were an
nalysed),
2
2) Values, which werre indicate
ed with “low
wer than lim
mit of quanntification”,
3
3) Values, which werre subconttracted,
4
4) Values, which werre submitte
ed after the
e deadline of submisssion of res
sults.
9. E
Evaluatiion
mber of parrticipants: 223
2
Num
Num
mber of rep
ported value
es: 653
Num
mber of acccepted valu
ues: 599 (9
91,73%)
In th
he following
g figure the
e successfful and not successfu
ul laboratorries for eac
ch paramete
er are illusttrated.
PT 5/13
page 4
10. Explanation of Appendix A
Appendix A contains for each parameter
- parameter tables
- a figure of participants’ means versus the spiked amount for the determination
of the recovery rate and the matrix content
- a figure of the relative standard deviations versus the concentrations
- a figure of the tolerance limits in the PT versus the concentrations
- the frequency of application of analytical methods
- the method specific evaluation
- a comparison of mean and reference values for each concentration level
- a comparison of the relative standard deviations of the different methods
- the statistical characteristics of the method specific evaluation
- a tabular comparison of the means with the reference values and their uncertainties
Parameter tables
In these tables the following values for each concentration level are listed:
•
•
•
•
•
•
•
•
•
assigned value
expanded uncertainty of the assigned value in %, calculated according to ISO
13528 using the formula
rel. standard deviation
U = 2 ⋅ 1.25 ⋅
number of values
standard deviation, calculated using robust statistical method
standard deviation for proficiency assessment for the calculation of zU-scores
rel. standard deviation for proficiency assessment
tolerance limits above and below
permitted deviations above and below in %
number of values in this level
number of not satisfactory values below and above the assigned value and the
percentage of these values in total.
Determination of recovery rate
In the diagrams of the assigned values versus the spiked amount of analyte a linear
regression line was calculated using a generalized least square regression which
takes into account the uncertainties of the values in both directions. From these values the recovery rate was determined (see diagram). The slope of the line indicates
the average recovery rate. The diagram also contain the expanded uncertainty (k=2)
of the mass values and the assigned values.
Relative standard deviations and tolerance limits
The diagram for the relative standard deviation vs. the assigned value show the concentration dependency of the standard deviation and the tolerance limits in percent.
The relative standard deviations calculated from participants’ data are the stars connected by an interrupted line, the rel. standard deviation taken from the variance
function (and sometimes limited by the upper or lower limit) are given by squares,
connected by a continuous line.
PT 5/13
page 5
Comparison of means and reference values for each concentration level
Finally the mean value calculated from all results (used as assigned value) is compared with mean values calculated for the method separately (in this case using the
Hampel estimator described in ISO/TS 20612). Mean values were calculated only, if
more than 7 results were within a z-score-range of ± 2. The means are reported with
their expanded uncertainty calculated according to ISO 13528.
11. Explanation of Appendix B
Participants were asked to report expanded uncertainties of their results on a voluntary basis. In this diagram for each parameter the reported uncertainties for all concentration levels with the reproducibility standard deviation (horizontal line) are displayed. Values which deviate from the reproducibility standard deviation with a factor
more than 2 are usually not realistic.
12. Explanation of Appendix C
In the last part of the report, for all concentration levels the results of all participants
are illustrated. Confidentiality of participants is ensured by using lab codes. The lab
codes were sent to participants with the certificates.
In detail Appendix C contains:
- a table with all data
- figures with
o all reported results
o all zU-scores
o all reported expanded uncertainties
o all ζ−scores
Table with all data
The assigned value with the expanded uncertainty and the tolerance limits for the
concentration level is illustrated in the table. For each participant the following data
are given:
•
•
•
•
•
•
•
•
lab code
reported result
measurement uncertainty of the value (if reported)
ζ-score for this value, calculated with the following formula
x−x
, with
ζ =
2
2
u lab
+ u ref
x − x = difference from the measured value and the assigned value
ulab = standard uncertainty of the value, reported by the participant
uref = standard uncertainty of the assigned value
zU-score for proficiency assessment
assessment of the value according to its z-score
Meaning of ζ-scores:
The assessment of ζ-scores is similar to that of z-scores. If the data are normally distributed and the uncertainties are well estimated, ζ-scores will lie between -2 and +2
with a probability of around 95 %.
ζ-scores are mainly influenced by the measurement uncertainties reported by the
laboratory. Therefore ζ-scores are usually not appropriate for the assessment of the
PT 5/13
page 6
reported results, unless the reported measurement uncertainty is checked for fitnessfor-purpose.
Therefore we do not use the ζ-scores for the assessment of the laboratories.
Nevertheless ζ-scores are appropriate to check the plausibility of the reported measurement uncertainty:
If the z-score of a result is within the tolerance limit and the ζ-score is outside, then
the measurement uncertainty is underestimated.
If the z-score is outside the tolerance limits and the absolute value of the ζ-score is
lower than two, then the requirements of the proficiency test were stronger compared
with the reported measurement uncertainty.
Diagrams of uncertainty data
In the first figure for all lab codes the measurement uncertainty (together with the reproducibility standard deviation) is illustrated. The second figure shows the associated ζ-scores.
13. Measurement uncertainty
128 (59,3%) out of 216 laboratories with valid values reported measurement uncertainties. In total 384 (59,1%) out of 650 valid values were given with the measurement uncertainty.
The following table displays the number of values with measurement uncertainty
against the accreditation status.
Accreditation status of
the values
accredited
not accredited
not specified
Number of
values
503
54
93
Number of values with measurement uncertainty
315 (62,6%)
33 (61,1%)
36 (38,7%)
We would like to put emphasis on the fact that reporting of measurement uncertainties in our PT scheme is absolutely voluntary. The only objective is to help all participants to reasonably handle measurement uncertainties and their estimation.
The diagrams show that the spread of reported uncertainties is vast, from unrealistic
low values up to very high. A plausibility check using reproducibility standard deviations of the PT round could be helpful here.
If measurement uncertainties are underestimated values assessed as “satisfactory”
in the PT (|zU| ≤ 2), will have a large ζ-score. |ζ| > 2 means that the “own” requirements (defined in terms of estimated uncertainty) are not fulfilled.
131 (37%) of the 354 values reported with uncertainties and having a zU-score
|zU| ≤ 2.0 had a ζ-score > 2.0. This means that the requirements of the PT scheme
have been fulfilled , but not the “own” requirements, the uncertainty is underestimated.
PT 5/13
page 7
14. Traceable reference values
Traceability of analytical results to national and international references is of increasing importance in all laboratories. This is not easy to realise for chemical analyses
and often can only be done by analysing certified reference materials. But availability
of these reference materials in the water sector is very limited. Therefore we try to
provide reference values for the proficiency test samples, traceable to national and
international references.
Since our PT samples without exception are spiked, real water samples, reference
values can be calculated from the sum of matrix content and spiked amount of analyte. For both summands traceable values and their uncertainty have to be determined. It is assumed that no unrecognised systematic deviations occurred during
sample preparation and dispatch and that all uncertainty components were discovered.
Determination of the spiked amount and its uncertainty
All spiking of samples was controlled gravimetrically. Conversion to concentration
was done by measuring the density of the resulting samples using a pycnometer.
This procedure allows the preparation of a complete uncertainty budget.
The first step is the specification of the measurand with a formula. This shows the
links between the result and all influence quantities for the parameter.
c lot =
with:
clot
cstandard
ms_ss,b
ms_ss,t
mss_lot,b
mss_lot,t
ρlot
mss,b
mss,t
mlot,b
mlot,t
c S tan dard ⋅ (ms _ ss,b − ms _ ss ,t ) ⋅ (mss _ lot ,b − mss _ lot ,t ) ⋅ ρ lot
(m
ss ,b
− mss ,t ) ⋅ (mlot ,b − mlot ,t )
concentration of the analyte in the lot resulting from the spike in g/l
concentration of the standard solution in g/g
mass of the standard added for preparation of the stock solution in g
(gross weight of the vessel)
mass of the standard added for preparation of the stock solution in g
(tare weight of the vessel)
mass of the stock solution into the lot in g (gross weight of the vessel)
mass of the stock solution into the lot in g (tare weight of the vessel)
density of the lot in g/l
total mass of the stock solution in g (gross weight of the vessel)
total mass of the stock solution in g (tare weight of the vessel)
total mass of the lot in g (gross weight of the vessel)
total mass of the lot in g (tare weight of the vessel)
Based on this formula the uncertainty budget can be prepared and all components
can be quantified. The following figure shows the distribution of the contributions,
The main contribution results from the weighing of the standard into the stock solution.
PT 5/13
pa
age 8
All used b
balances are proofed annually b
by an accredited calibration labboratory an
nd
for each b
balance a calibration
c
certificate is provided. The unc
certainties of the weig
ghings are ta
aken from these certtificates.
The deterrmination of
o the dens
sity was alsso made us
sing weigh
hings (of thhe pycnome
eter). Temp
perature measureme
m
ent was ma
ade with a calibrated thermomeeter.
With all th
hese uncerrtainty com
mponents th
he combine
ed uncerta
ainty, as deescribed in the
EURACHEM/CITAC
C-Guide „Q
Quantifying Uncertain
nty in Analy
ytical Meassurement“, was
calculated
d using the
e sensitivity
y coefficien
nts determined by pa
artial derivaation of the
e
formula to
o the respe
ective influe
ence quan
ntities.
So tracea
ability was assured
a
by
y using callibrated balances and
d thermom
meters.
x content
Determination of the matrix
Because tthe same matrix
m
was
s used for p
preparation
n of all sam
mples, the matrix con
ntent
could be ccalculated from the mean
m
value
es of the pa
articipants and the sppiked amo
ounts
in a stand
dard-additio
on-like way
y1,2.
1
Rienitz, O., Schiel, D., Güttler, B., Koch,
K
M., Bo
orchers, U.: A convenientt and econom
mic approach
h to
achieve SI-ttraceable refference value
es to be used
d in drinking-water interla
aboratory coomparisons. AcA
cred Qual A
Assur (2007) 12: 615-622
2.
2
Koch, M., Baumeister, F.: Traceable reference values for ro
outine drinkin
ng water profficiency testing:
first experie
ences. Accred
d Qual Assur (2008) 13: 77-82.
PT 5/13
page 9
The uncertainties of the spiked amounts were known from the uncertainty budgets.
The expanded uncertainties of the mean values of participants’ result were calculated
according to ISO 13528 (Statistical Methods for Use in Proficiency Testing by Interlaboratory Comparisons) as
u mean = 2 ⋅ 1,25 ⋅
sR
n
with:
sR
n
2
1,25
reproducibility standard deviation
number of data for this level
coverage factor for the expanded uncertainty
correction factor (according to ISO 13528 to be used for robust methods)
The content of the matrix can be derived from a linear regression of means vs.
spiked amounts. Since uncertainties of all data points were available for x- as well as
y-direction a generalised least square regression was used as described in DIN EN
6143. The computer program B_LEAST (from BAM) was used for this purpose.
With this method a value for matrix and its uncertainty are obtained. Because of statistical variation of the input values the calculated matrix content might result in a
negative value. In those cases the matrix content is set to zero. The lower end of the
uncertainty range of the matrix content also might be negative. Therefore the expanded uncertainty of the matrix content was set to the matrix content itself in this
case. The matrix content is not directly traceable to national or international references, but it does not considerably compromise the traceability of the final content
due to its comparably low contribution.
15. Characteristics of total petroleum hydrocarbons
The calculated reference values are based on the total mass concentration of the
diesel and the lubricating oil. Total petroleum hydrocarbons are analysed with an operationally defined method which is maybe not able to determine the complete total
mass concentration. Therefore the reference values are not appropriate to be used
as conventional true values and are only reported for the determination of the average recovery rate of the method for informative purposes.
16. Internet
The report is available on the following webpage:
http://www.aqsbw/pdf/report513.pdf
PT 5/13
-
out [%]
30,00 0,7857 0,2132 72,02 -53,33 55 3 6
24,29 0,7826 0,2808 56,06 -44,00 55 4 2
25,62 1,050 0,3537 59,68 -46,22 54 3 2
24,15 1,126 0,4067 55,70 -43,78 52 5 2
22,45 1,698 0,6636 51,18 -40,92 55 6 0
22,25 3,646 1,438 50,66 -40,58 55 4 0
20,13 5,607 2,434 45,20 -36,98 54 5 2
25,07 6,875 2,378 58,17 -45,30 53 4 0
20,65 7,728 3,278 46,50 -37,86 54 6 0
22,81 9,320 3,583 52,12 -41,52 55 4 1
15,74 9,039 4,752 34,36 -29,37 53 4 0
19,00 11,02 5,032 42,34 -35,03 55 3 1
sum
650 51 16
16,4
10,9
9,3
13,5
10,9
7,3
13,0
7,5
11,1
9,1
7,5
7,3
10,3
out below
out above
number of results
0,1370
0,1218
0,1685
0,1747
0,2522
0,5386
0,7774
1,090
1,089
1,397
1,059
1,471
lower tolerance limit [%]
standard deviation for proficiency
assessment [mg/l]
0,1479
0,1218
0,1685
0,1747
0,2522
0,5386
0,7774
1,090
1,089
1,397
1,059
1,471
upper tolerance limit [%]
standard deviation, calculated
using robust statistics [mg/l]
19,72
17,22
13,55
12,43
8,97
3,84
2,64
2,04
1,92
1,72
1,34
1,07
lower tolerance limit [mg/l]
expanded uncertainty of the
assigned value [%]
0,4568
0,5015
0,6577
0,7234
1,123
2,420
3,862
4,347
5,275
6,127
6,727
7,746
upper tolerance limit [mg/l]
assigned value [mg/l]
1
2
3
4
5
6
7
8
9
10
11
12
standard deviation for proficiency
assessment [%]
level
Total petroleum hydrocarbons
Recovery and matrix content
Total petroleum hydrocarbons
9
8
7
l/ 6
gm
ni 5
na4
em
3
2
1
0
0
2
4
6
8
10
12
added amount in mg/l
Slope of the regression: 0,777, recovery: 77,7%
Neg. x-axis intercept = matrix content: 0,05 mg/l
Expanded uncertainty of the matrix content: 0,05 mg/l = 100%
page A-1 of A-11
PT 5/13
Relative standard deviation and tolerance limits
Total petroleum hydrocarbons
35
30
%n
in25
oit
aiv 20
ed
dr 15
ad
na
ts 10
.le
r
5
0
0
1
2
3
4
5
6
7
8
9
8
9
concentration in mg/l
The relative standard deviation, calculated with the Q-method, reached the upper
limit with one concentration level.
Total petroleum hydrocarbons
80
60
%n 40
is
ti 20
mli
ec 0
na
rle
ot -20
-40
-60
0
1
2
3
4
5
6
7
concentration in mg/l
page A-2 of A-11
PT 5/13
Method specific evaluation
The method specific evaluation cannot be applied, because only the GC method after
solvent extraction was allowed for usage.
page A-3 of A-11
PT 5/13
-
10,9
8,2
8,7
8,4
7,6
7,5
6,8
8,6
7,0
7,7
5,4
6,4
0,5895
0,7084
0,8969
0,9953
1,580
3,192
4,884
5,790
6,906
7,687
8,863
9,829
0,1162
0,1220
0,1216
0,1237
0,142
0,123
0,129
0,118
0,133
0,132
0,119
0,106
exp. uncertainty [%]
0,0499
0,0411
0,0573
0,0606
0,085
0,182
0,264
0,374
0,370
0,471
0,364
0,496
exp. uncertainty [mg/l]
exp. uncertainty [mg/l]
0,4568
0,5015
0,6577
0,7234
1,123
2,420
3,862
4,347
5,275
6,127
6,727
7,746
reference value [mg/l]
mean [mg/l]
1
2
3
4
5
6
7
8
9
10
11
12
exp. uncertainty [%]
level
Comparison of means and reference values
19,7
17,2
13,6
12,4
9,0
3,8
2,6
2,0
1,9
1,7
1,3
1,1
comparison of means and reference values
overall mean
reference values
GC after solvent extraction
0,8
0,7
0,6
l/ 0,5
g
mn
in0,4
ae
m0,3
0,2
0,1
0
1
level
page A-4 of A-11
PT 5/13
-
comparison of means and reference values
overall mean
reference values
GC after solvent extraction
0,9
0,8
0,7
l/ 0,6
g
mn0,5
in
ae 0,4
m0,3
0,2
0,1
0
2
level
comparison of means and reference values
overall mean
reference values
GC after solvent extraction
1,2
1
l/ 0,8
g
mn
in0,6
ae
m0,4
0,2
0
3
level
page A-5 of A-11
PT 5/13
-
comparison of means and reference values
overall mean
reference values
GC after solvent extraction
1,2
1
l/ 0,8
g
mn
in0,6
ae
m0,4
0,2
0
4
level
comparison of means and reference values
overall mean
reference values
GC after solvent extraction
2
1,8
1,6
l/ 1,4
g 1,2
mn
in 1
ae 0,8
m
0,6
0,4
0,2
0
5
level
page A-6 of A-11
PT 5/13
-
comparison of means and reference values
overall mean
reference values
GC after solvent extraction
3,5
3
l/ 2,5
g 2
mn
in
ae 1,5
m
1
0,5
0
6
level
comparison of means and reference values
overall mean
reference values
GC after solvent extraction
6
5
l/ 4
g
mn
in3
ae
m2
1
0
7
level
page A-7 of A-11
PT 5/13
-
comparison of means and reference values
overall mean
reference values
GC after solvent extraction
7
6
l/ 5
g4
mn
in
ae 3
m
2
1
0
8
level
comparison of means and reference values
overall mean
reference values
GC after solvent extraction
8
7
6
l/ 5
g
mn
in4
ae
m3
2
1
0
9
level
page A-8 of A-11
PT 5/13
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comparison of means and reference values
overall mean
reference values
GC after solvent extraction
9
8
7
l/ 6
g
mn5
in
ae4
m3
2
1
0
10
level
comparison of means and reference values
overall mean
reference values
GC after solvent extraction
10
9
8
l/ 7
g6
mn
in 5
ae 4
m
3
2
1
0
11
level
page A-9 of A-11
PT 5/13
-
comparison of means and reference values
overall mean
reference values
GC after solvent extraction
12
10
l/ 8
g
mn
in 6
ae
m4
2
0
12
level
rel. standard dev. method specific
35
30
%n25
i.
ve
dd20
ra
dn15
ats
.le10
r
5
0
1
2
3
4
5
6
7
8
9
10
11
12
level
overall mean
GC after solvent extraction
page A-10 of A-11
PT 5/13
-
1
2
3
4
5
6
7
8
9
10
11
12
0,457
0,501
0,658
0,723
1,123
2,42
3,862
4,347
5,275
6,127
6,727
7,746
0,025
0,021
0,029
0,03
0,043
0,091
0,132
0,187
0,185
0,236
0,182
0,248
5,459
4,094
4,358
4,187
3,784
3,751
3,425
4,304
3,512
3,844
2,702
3,202
0,148
0,122
0,168
0,175
0,252
0,539
0,777
1,09
1,089
1,397
1,059
1,471
32,39
24,29
25,62
24,15
22,45
22,25
20,13
25,07
20,65
22,81
15,74
19
55
55
54
52
55
55
54
53
54
55
53
55
4
4
1
2
5
3
4
2
5
3
2
4
4
2
2
2
0
0
2
0
0
1
0
1
out [%]
out above
out below
number of results
robust standard deviation [%]
robust standard deviation [mg/l]
exp. unc. of the mean [%]
exp. unc. of the mean [mg/l]
robust mean [mg/l]
level
GC after solvent extraction
14,55
10,91
5,556
7,692
9,091
5,455
11,11
3,774
9,259
7,273
3,774
9,091
page A-11 of A-11
PT 5/13
-
Total petroleum hydrocarbons - exp. measurement uncertainty
100%
90%
yt 80%
n
ia
tr 70%
e
c
n 60%
u
t
n
e 50%
m
e
r
u
sa 40%
e
30%
m
.
p
xe
20%
10%
0%
1
2
3
4
5
6
7
8
9
10
11
12
page B-1 of B-1
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 1
assigned value [mg/l]*
0,4568 ± 0,0499
upper tolerance limit [mg/l]
0,7857
lower tolerance limit [mg/l]
0,2132
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
3
0,55
0,083
1,9
0,6
+
12
0,359
-0,8
+
13
0,473
0,167
0,2
0,1
+
16
0,46
0,09
0,1
0,0
+
17
0,642
0,099
3,3
1,1
+
35
0,37
-0,7
+
36
0,518
0,104
1,1
0,4
+
38
0,364
0,034 -3,1
-0,8
+
40
0,4
0,014 -2,2
-0,5
+
41
0,404
0,1
-0,9
-0,4
+
42
1,1
0,223
5,6
3,9
43
0,407
-0,4
+
55
0,495
0,16
0,5
0,2
+
69
0,482
0,2
+
70
0,435
0,156 -0,3
-0,2
+
72
2,39
11,8
75
0,42
-0,3
+
77
0,476
0,012
0,8
0,1
+
79
0,465
0,1
+
88
0,474
0,1
+
92
0,338
-1,0
+
93
0,482
0,2
+
96
0,209
-2,0
+
97
0,12
0,1
-6,0
-2,8
99
0,32
0,06
-3,5
-1,1
+
113
0,58
0,7
+
117
0,326
-1,1
+
120
0,472
0,334
0,1
0,1
+
124
0,386
-0,6
+
125
0,532
0,03
2,6
0,5
+
126
0,585
0,088
2,5
0,8
+
127
0,519
0,07
1,4
0,4
+
131
0,356
0,05
-2,9
-0,8
+
132
0,812
2,2
136
0,51
0,08
1,1
0,3
+
139
0,8045
2,1
142
0,171
0,05
-8,1
-2,3
146
0,331
-1,0
+
149
0,67
0,23
1,8
1,3
+
152
0,51
0,3
+
174
0,44
0,08
-0,4
-0,1
+
177
0,342
-0,9
+
178
0,5
0,3
+
182
0,384
-0,6
+
187
0,912
0,012 17,7
2,8
188
0,57
0,1
2,0
0,7
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-1 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 1
assigned value [mg/l]*
0,4568 ± 0,0499
upper tolerance limit [mg/l]
0,7857
lower tolerance limit [mg/l]
0,2132
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
192
0,438
0,05
-0,5
-0,2
+
194
0,46
0,0
+
204
0,373
0,209 -0,8
-0,7
+
205
0,176
0,039 -8,9
-2,3
212
1,12
0,17
7,5
4,0
213
0,55
0,6
+
218
0,364
0,036 -3,0
-0,8
+
222
0,602
0,102
2,6
0,9
+
226
0,629
1,0
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-2 of C-48
re
o
c
sU
z
-4
97
142
205
96
99
117
146
92
177
131
12
38
218
35
204
182
124
40
41
43
75
70
192
174
16
194
79
120
13
88
77
69
93
55
178
136
152
36
127
125
3
213
188
113
126
222
226
17
149
139
132
187
42
212
72
0
97
142
205
96
99
117
146
92
177
131
12
38
218
35
204
182
124
40
41
43
75
70
192
174
16
194
79
120
13
88
77
69
93
55
178
136
152
36
127
125
3
213
188
113
126
222
226
17
149
139
132
187
42
212
72
PT 5/13
Total petroleum hydrocarbons - 1
3
2,5
l
/
g
m 2
n
i
n
io
t 1,5
a
rt
n
e
c 1
n
o
c
0,5
lab code
Total petroleum hydrocarbons - 1
14
12
10
8
6
4
2
0
-2
lab code
page C-3 of C-48
PT 5/13
-
Total petroleum hydrocarbons - 1
0,4
l 0,35
/
g
m 0,3
in
y
t 0,25
in
a
tr
0,2
e
c
n
u
d0,15
e
d
n
a 0,1
p
x
e
120
187
42
42
149
204
17
212
13
55
126
212
70
188
125
36
3
222
222
149
97
188
127
41
17
16
3
126
174
136
99
127
192
142
131
205
38
218
40
125
77
0
187
0,05
lab code
Total petroleum hydrocarbons - 1
20
15
10
0
-5
136
36
77
55
13
120
16
70
174
192
204
41
40
131
38
218
99
97
-15
142
-10
205
ζ
e
r 5
o
c
-S
lab code
page C-4 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 2
assigned value [mg/l]*
0,5015 ± 0,0411
upper tolerance limit [mg/l]
0,7826
lower tolerance limit [mg/l]
0,2808
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
2
0,511
0,1
+
4
0,535
0,058
0,9
0,2
+
7
0,59
8,13
0,0
0,6
+
8
0,645
0,129
2,1
1,0
+
20
0,55
0,3
+
21
0,422
-0,7
+
25
0,645
6,36
0,0
1,0
+
26
0,699
0,097
3,8
1,4
+
34
0,284
0,045 -7,1
-2,0
+
37
0,537
0,05
1,1
0,3
+
45
0,607
0,124
1,6
0,8
+
54
0,35
0,1
-2,8
-1,4
+
60
0,506
0,082
0,1
0,0
+
65
0,412
0,124 -1,4
-0,8
+
73
0,486
0,19
-0,2
-0,1
+
78
0,611
0,146
1,4
0,8
+
82
0,548
0,055
1,4
0,3
+
84
0,659
1,1
+
100
0,57
0,5
+
109
0,556
0,122
0,8
0,4
+
115
0,39
-1,0
+
118
0,536
0,05
1,1
0,2
+
123
0,344
0,086 -3,3
-1,4
+
129
0,595
0,7
+
137
0,44
0,02
-2,7
-0,6
+
141
0,23
0,012 -12,7
-2,5
143
0,599
0,09
2,0
0,7
+
158
0,59
0,6
+
160
0,547
0,3
+
161
2,433
13,7
164
0,46
-0,4
+
166
0,552
0,4
+
167
0,59
0,6
+
169
0,4
0,2
-1,0
-0,9
+
170
0,48
0,13
-0,3
-0,2
+
172
0,301
0,06
-5,5
-1,8
+
180
0,573
0,5
+
181
0,157
-3,1
184
0,29
-1,9
+
185
0,41
-0,8
+
190
0,25
0,014 -11,6
-2,3
193
0,354
0,07
-3,6
-1,3
+
198
0,528
0,2
+
199
0,565
0,5
+
203
0,859
2,5
206
0,586
0,6
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-5 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 2
assigned value [mg/l]*
0,5015 ± 0,0411
upper tolerance limit [mg/l]
0,7826
lower tolerance limit [mg/l]
0,2808
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
210
0,527
0,2
+
214
0,461
0,02
-1,8
-0,4
+
216
0,581
0,6
+
217
0,49
0,1
-0,2
-0,1
+
219
0,492
0,042 -0,3
-0,1
+
221
0,472
0,12
-0,5
-0,3
+
223
0,64
1,0
+
225
0,374
0,05
-3,9
-1,2
+
229
0,483
-0,2
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-6 of C-48
re
o
c
sU
z
-4
181
141
190
34
184
172
123
54
193
225
115
169
185
65
21
137
164
214
221
170
229
73
217
219
60
2
210
198
4
118
37
160
82
20
166
109
199
100
180
216
206
7
158
167
129
143
45
78
223
8
25
84
26
203
161
0
181
141
190
34
184
172
123
54
193
225
115
169
185
65
21
137
164
214
221
170
229
73
217
219
60
2
210
198
4
118
37
160
82
20
166
109
199
100
180
216
206
7
158
167
129
143
45
78
223
8
25
84
26
203
161
PT 5/13
Total petroleum hydrocarbons - 2
3
2,5
l
/
g
m 2
n
i
n
io
t 1,5
a
rt
n
e
c 1
n
o
c
0,5
lab code
Total petroleum hydrocarbons - 2
16
14
12
10
8
6
4
2
0
-2
lab code
page C-7 of C-48
PT 5/13
-
8,13
6,36
Total petroleum hydrocarbons - 2
0,3
7
143
25
73
169
45
8
78
78
26
8
170
65
82
45
118
37
109
4
221
109
54
217
26
143
60
123
193
4
172
82
225
118
37
34
219
214
137
190
0
141
l 0,25
/
g
m
in
0,2
y
t
in
a
tr
0,15
e
c
n
u
d
e 0,1
d
n
a
p
x 0,05
e
lab code
Total petroleum hydrocarbons - 2
6
4
2
0
-2
-6
-8
-10
60
25
7
73
217
170
219
221
169
65
214
137
54
123
193
225
172
34
-14
190
-12
141
ζ
e
r
o
c -4
-S
lab code
page C-8 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 3
assigned value [mg/l]*
0,6577 ± 0,0573
upper tolerance limit [mg/l]
1,05
lower tolerance limit [mg/l]
0,3537
ζ-score zU-score assessm.
lab code
result [mg/l]
±
1
0,583
0,06
-1,8
-0,5
+
9
0,401
0,06
-6,2
-1,7
+
10
0,615
-0,3
+
14
0,369
0,1
-5,0
-1,9
+
15
0,88
0,12
3,3
1,1
+
19
0,64
0,019 -0,6
-0,1
+
23
0,65
0,14
-0,1
-0,1
+
24
0,775
0,12
1,8
0,6
+
31
0,714
0,006
2,0
0,3
+
33
0,899
1,2
+
39
0,8
0,253
1,1
0,7
+
44
0,61
0,135 -0,6
-0,3
+
46
0,712
0,1
0,9
0,3
+
48
0,647
-0,1
+
51
0,62
0,24
-0,3
-0,2
+
53
0,823
0,8
+
58
0,761
0,5
+
59
9
0,9
18,5
42,5
62
0,833
0,9
+
63
0,671
0,07
0,3
0,1
+
67
0,408
0,12
-3,8
-1,6
+
68
0,97
1,6
+
71
0,616
-0,3
+
81
0,633
-0,2
+
86
0,83
0,9
+
89
0,53
0,2
-1,2
-0,8
+
91
0,66
0,198
0,0
0,0
+
94
0,708
0,094
0,9
0,3
+
95
0,77
0,6
+
101
0,6
-0,4
+
103
0,54
-0,8
+
105
0,6
-0,4
+
108
0,475
0,25
-1,4
-1,2
+
111
0,8
0,128
2,0
0,7
+
112
0,64
-0,1
+
114
0,599
0,02
-1,9
-0,4
+
116
0,4
0,01
-8,9
-1,7
+
119
0,485
-1,1
+
133
0,737
0,074
1,7
0,4
+
147
0,641
0,1
-0,3
-0,1
+
153
0,5615
-0,6
+
154
0,98
0,33
1,9
1,6
+
155
0,536
-0,8
+
159
1,85
6,1
163
0,63
0,1
-0,5
-0,2
+
165
0,63
-0,2
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-9 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 3
assigned value [mg/l]*
0,6577 ± 0,0573
upper tolerance limit [mg/l]
1,05
lower tolerance limit [mg/l]
0,3537
ζ-score zU-score assessm.
lab code
result [mg/l]
±
175
0,475
0,095 -3,3
-1,2
+
176
0,835
0,167
2,0
0,9
+
179
0,836
0,9
+
186
0,736
0,4
+
191
0,534
0,207 -1,2
-0,8
+
200
0,719
0,07
1,4
0,3
+
207
0,76
0,098
1,8
0,5
+
215
0,278
0,076 -8,0
-2,5
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-10 of C-48
-4
215
14
116
9
67
108
175
119
89
191
155
103
153
1
114
101
105
44
10
71
51
163
165
81
19
112
147
48
23
91
63
94
46
31
200
186
133
207
58
95
24
39
111
53
86
62
176
179
15
33
68
154
159
59
0
215
14
116
9
67
108
175
119
89
191
155
103
153
1
114
101
105
44
10
71
51
163
165
81
19
112
147
48
23
91
63
94
46
31
200
186
133
207
58
95
24
39
111
53
86
62
176
179
15
33
68
154
159
59
PT 5/13
Total petroleum hydrocarbons - 3
Total petroleum hydrocarbons - 3
9
3
2,5
l
/
g
m 2
n
i
n
io
t 1,5
a
rt
n
e
c 1
n
o
c
0,5
lab code
42,5
8
6
4
re
o
c 2
sU
z
0
-2
lab code
page C-11 of C-48
PT 5/13
-
Total petroleum hydrocarbons - 3
1
0,9
l
/
g 0,8
m
in0,7
y
t
in0,6
a
tr
0,5
e
c
n
u0,4
d
e
d0,3
n
a
p0,2
x
e
51
108
39
154
59
111
44
23
176
91
89
191
14
46
147
163
15
24
67
9
63
200
133
215
94
175
207
0
31
116
19
114
1
0,1
lab code
Total petroleum hydrocarbons - 3
20
15
10
0
-5
-10
-15
116
215
9
14
67
175
114
1
108
89
191
44
19
163
51
147
23
91
63
94
46
39
200
133
24
207
154
31
176
111
15
59
ζ
e
r 5
o
c
-S
lab code
page C-12 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 4
assigned value [mg/l]*
0,7234 ± 0,0606
upper tolerance limit [mg/l]
1,126
lower tolerance limit [mg/l]
0,4067
ζ-score zU-score assessm.
lab code
result [mg/l]
±
5
0,746
0,04
0,6
0,1
+
18
0,898
0,9
+
22
0,775
0,3
+
27
0,48
0,096 -4,3
-1,5
+
28
0,65
5
0,0
-0,5
+
30
0,465
-1,6
+
32
1,082
0,195
3,5
1,8
+
47
0,846
0,17
1,4
0,6
+
49
0,702
0,281 -0,1
-0,1
+
50
0,647
15,5
0,0
-0,5
+
52
0,95
1,1
+
56
0,764
0,331
0,2
0,2
+
57
0,65
-0,5
+
66
0,738
0,221
0,1
0,1
+
74
0,445
-1,8
+
76
0,944
0,09
4,1
1,1
+
80
0,7324
0,0
+
83
0,93
1,0
+
85
0,623
0,032 -2,9
-0,6
+
87
0,697
0,25
-0,2
-0,2
+
98
0,752
0,15
0,4
0,1
+
104
0,615
0,123 -1,6
-0,7
+
106
0,45
0,15
-3,4
-1,7
+
107
1,23
0,09
9,3
2,5
121
0,734
0,02
0,3
0,1
+
122
0,47
35
0,0
-1,6
+
128
0,72
0,02
-0,1
0,0
+
130
0,906
0,9
+
134
0,583
0,26
-1,1
-0,9
+
135
0,774
0,18
0,5
0,3
+
138
0,788
0,363
0,4
0,3
+
140
0,784
0,3
+
144
0,83
0,04
2,9
0,5
+
145
0,75
0,1
+
148
0,524
-1,3
+
150
0,641
0,1
-1,4
-0,5
+
151
0,69
0,07
-0,7
-0,2
+
156
0,658
0,04
-1,8
-0,4
+
157
0,789
0,3
+
162
0,42
0,07
-6,6
-1,9
+
168
0,923
1,0
+
171
0,787
0,135
0,9
0,3
+
173
0,832
0,146
1,4
0,5
+
183
0,77
0,12
0,7
0,2
+
195
1,05
1,6
+
196
0,793
5E-04 2,3
0,3
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-13 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 4
assigned value [mg/l]*
0,7234 ± 0,0606
upper tolerance limit [mg/l]
1,126
lower tolerance limit [mg/l]
0,4067
ζ-score zU-score assessm.
lab code
result [mg/l]
±
197
0,496
-1,4
+
208
0,74
0,1
0,3
0,1
+
208
1,18
2,3
211
0,39
0,09
-6,1
-2,1
220
0,335
0,038 -10,9
-2,5
224
0,78
0,1
1,0
0,3
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-14 of C-48
-3
220
211
162
74
106
30
122
27
197
148
134
104
85
150
50
28
57
156
151
87
49
128
80
121
66
208
5
145
98
56
183
135
22
224
140
171
138
157
196
144
173
47
18
130
168
83
76
52
195
32
208
107
0
220
211
162
74
106
30
122
27
197
148
134
104
85
150
50
28
57
156
151
87
49
128
80
121
66
208
5
145
98
56
183
135
22
224
140
171
138
157
196
144
173
47
18
130
168
83
76
52
195
32
208
107
PT 5/13
Total petroleum hydrocarbons - 4
1,4
1,2
l
/ 1
g
m
n
i
n0,8
io
t
a
rt 0,6
n
e
c
n
0,4
o
c
0,2
lab code
Total petroleum hydrocarbons - 4
3
2
1
re
o
c 0
sU
z
-1
-2
lab code
page C-15 of C-48
196
121
128
85
220
5
144
156
151
162
76
107
211
27
150
208
224
183
104
171
173
98
106
47
135
32
66
87
134
49
56
138
28
50
122
0
-15
220
162
211
27
106
85
156
104
150
134
151
87
49
128
28
122
50
66
56
208
121
138
98
135
5
183
171
224
47
173
196
144
32
76
107
ζ
PT 5/13
Total petroleum hydrocarbons - 4
6
15,5
35
l5
/
g
m
in
4
y
t
in
a
tr
3
e
c
n
u
d
e2
d
n
a
p
x1
e
lab code
Total petroleum hydrocarbons - 4
15
10
5
e
r
o
c 0
-S
-5
-10
lab code
page C-16 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 5
assigned value [mg/l]*
1,123 ± 0,085
upper tolerance limit [mg/l]
1,698
lower tolerance limit [mg/l]
0,6636
ζ-score zU-score assessm.
lab code
result [mg/l]
±
14
0,738
0,18
-3,9
-1,7
+
21
0,776
-1,5
+
27
0,7
0,14
-5,2
-1,8
+
33
1,304
0,6
+
34
0,92
0,147 -2,4
-0,9
+
40
1,35
0,014
5,3
0,8
+
45
1,395
0,284
1,8
0,9
+
48
1,14
0,1
+
50
0,923
15,5
0,0
-0,9
+
52
1,3
0,6
+
57
0,9
-1,0
+
65
0,961
0,288 -1,1
-0,7
+
72
0,24
-3,8
74
0,96
-0,7
+
76
1,245
0,12
1,7
0,4
+
77
1,26
0,013
3,2
0,5
+
86
1,33
0,7
+
92
0,811
-1,4
+
95
1,38
0,9
+
97
0,18
0,1
-14,4
-4,1
103
1,09
-0,1
+
109
1,22
0,268
0,7
0,3
+
116
0,66
0,06
-8,9
-2,0
+
123
0,923
0,185 -2,0
-0,9
+
126
1,58
0,237
3,6
1,6
+
129
1,26
0,5
+
130
1,53
1,4
+
137
1,19
0,02
1,5
0,2
+
138
1,255
0,578
0,5
0,5
+
140
1,264
0,5
+
141
0,57
0,012 -12,9
-2,4
147
0,891
0,1
-3,5
-1,0
+
152
1,19
0,2
+
158
1,33
0,7
+
163
1,28
0,13
2,0
0,5
+
165
1,2
0,3
+
166
1,23
0,4
+
171
0,937
0,16
-2,1
-0,8
+
173
1,19
0,209
0,6
0,2
+
174
1,58
0,2
4,2
1,6
+
178
1,29
0,6
+
179
1,402
1,0
+
182
1,15
0,1
+
184
0,924
-0,9
+
186
1,21
0,3
+
193
0,841
0,07
-5,1
-1,2
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-17 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 5
assigned value [mg/l]*
1,123 ± 0,085
upper tolerance limit [mg/l]
1,698
lower tolerance limit [mg/l]
0,6636
ζ-score zU-score assessm.
lab code
result [mg/l]
±
194
1
-0,5
+
196
1,18
6E-04 1,3
0,2
+
197
0,982
-0,6
+
199
1,29
0,6
+
200
1,33
0,13
2,7
0,7
+
215
0,411
0,113 -10,1
-3,1
219
1,18
0,01
1,3
0,2
+
221
1,06
0,265 -0,5
-0,3
+
222
1,53
0,156
4,6
1,4
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-18 of C-48
-5
97
72
215
141
116
27
14
21
92
193
147
57
34
50
123
184
171
74
65
197
194
221
103
48
182
196
219
137
152
173
165
186
109
166
76
138
77
129
140
163
178
199
52
33
86
158
200
40
95
45
179
130
222
126
174
0
97
72
215
141
116
27
14
21
92
193
147
57
34
50
123
184
171
74
65
197
194
221
103
48
182
196
219
137
152
173
165
186
109
166
76
138
77
129
140
163
178
199
52
33
86
158
200
40
95
45
179
130
222
126
174
PT 5/13
Total petroleum hydrocarbons - 5
1,8
1,6
l 1,4
/
g
m1,2
n
i
n 1
io
t
a
rt 0,8
n
e
c 0,6
n
o
c
0,4
0,2
lab code
Total petroleum hydrocarbons - 5
3
2
1
re
o
c -1
sU
z
0
-2
-3
-4
lab code
page C-19 of C-48
PT 5/13
-
Total petroleum hydrocarbons - 5
15,5
1
0,9
l
/
g 0,8
m
in0,7
y
t
in0,6
a
tr
0,5
e
c
n
u0,4
d
e
d0,3
n
a
p0,2
x
e
221
109
45
65
200
77
126
174
50
126
163
138
173
45
40
174
76
222
123
137
14
171
34
222
27
200
76
163
215
97
147
193
116
40
137
77
141
219
0
196
0,1
lab code
Total petroleum hydrocarbons - 5
10
5
0
ζ
e
r
o
c -5
-S
-10
196
219
109
173
50
138
65
221
123
34
171
147
14
27
193
116
215
97
-20
141
-15
lab code
page C-20 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 6
assigned value [mg/l]*
2,42 ± 0,182
upper tolerance limit [mg/l]
3,646
lower tolerance limit [mg/l]
1,438
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
3
3,08
0,46
2,7
1,1
+
5
2,12
0,1
-2,9
-0,6
+
8
2,66
0,532
0,9
0,4
+
12
1,75
-1,4
+
13
2,22
0,782 -0,5
-0,4
+
15
3,15
0,15
6,2
1,2
+
18
2,59
0,3
+
23
2,64
0,58
0,7
0,4
+
24
2,89
0,34
2,4
0,8
+
25
3,15
6,36
0,2
1,2
+
26
2,88
0,4
2,1
0,8
+
28
2,588
0,1
1,6
0,3
+
30
3,07
1,1
+
31
3,04
0,006
6,8
1,0
+
56
2,585
1,103
0,3
0,3
+
67
2,3
0,69
-0,3
-0,2
+
68
2,52
0,2
+
70
2,89
1,04
0,9
0,8
+
78
1,963
0,146 -3,9
-0,9
+
82
2,6
0,26
1,1
0,3
+
83
2,82
0,7
+
88
0,754
-3,4
93
1,71
-1,4
+
98
2,54
0,508
0,4
0,2
+
100
2,385
-0,1
+
106
1,85
0,3
-3,3
-1,2
+
111
2,68
0,429
1,1
0,4
+
112
2,7
0,5
+
113
2,4
0,0
+
114
2,1
0,02
-3,5
-0,7
+
118
2,71
0,52
1,1
0,5
+
122
2
35
0,0
-0,9
+
127
2,781
0,37
1,8
0,6
+
128
2,1
0,023 -3,5
-0,7
+
134
1,59
0,72
-2,2
-1,7
+
135
2,84
0,65
1,2
0,7
+
136
2,49
0,37
0,3
0,1
+
139
3,175
1,2
+
146
2,003
-0,8
+
153
1,8315
-1,2
+
155
2,1
-0,7
+
162
1,4
0,23
-7,0
-2,1
164
2,29
-0,3
+
167
2,49
0,1
+
168
3,326
1,5
+
172
2,25
0,2
-1,3
-0,3
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-21 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 6
assigned value [mg/l]*
2,42 ± 0,182
upper tolerance limit [mg/l]
3,646
lower tolerance limit [mg/l]
1,438
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
187
2,59
0,012
1,9
0,3
+
195
2,34
-0,2
+
206
2,78
0,6
+
210
2,218
-0,4
+
211
1,36
0,15
-9,0
-2,2
217
2,17
0,45
-1,0
-0,5
+
218
2,52
0,25
0,6
0,2
+
220
1,5
0,17
-7,4
-1,9
+
229
2,221
-0,4
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-22 of C-48
-4
88
211
162
220
134
93
12
153
106
78
122
146
114
128
155
5
217
210
13
229
172
164
67
195
100
113
136
167
68
218
98
56
28
18
187
82
23
8
111
112
118
206
127
83
135
26
24
70
31
30
3
15
25
139
168
0
88
211
162
220
134
93
12
153
106
78
122
146
114
128
155
5
217
210
13
229
172
164
67
195
100
113
136
167
68
218
98
56
28
18
187
82
23
8
111
112
118
206
127
83
135
26
24
70
31
30
3
15
25
139
168
PT 5/13
Total petroleum hydrocarbons - 6
4
3,5
l 3
/
g
m
n
i 2,5
n
io
t 2
a
rt
n1,5
e
c
n
o
c 1
0,5
lab code
Total petroleum hydrocarbons - 6
3
2
1
re 0
o
c
sU
z -1
-2
-3
lab code
page C-23 of C-48
31
187
114
128
5
28
78
15
211
220
172
162
218
82
106
24
127
136
26
111
217
3
98
118
8
23
135
67
134
13
70
56
25
122
0
-10
211
220
162
78
114
128
106
5
134
172
217
13
67
122
25
56
136
98
218
23
8
70
118
111
82
135
28
127
187
26
24
3
15
31
ζ
PT 5/13
Total petroleum hydrocarbons - 6
35
8
l7
/
g
m6
in
y
t5
in
a
tr
4
e
c
n
u
d3
e
d
n
a2
p
x
e
1
lab code
Total petroleum hydrocarbons - 6
8
6
4
2
e
r 0
o
c
-S
-2
-4
-6
-8
lab code
page C-24 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 7
assigned value [mg/l]*
3,862 ± 0,264
upper tolerance limit [mg/l]
5,607
lower tolerance limit [mg/l]
2,434
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
4
3,86
0,42
0,0
0,0
+
9
3,11
0,467 -2,8
-1,1
+
17
4,32
0,374
2,0
0,5
+
22
4,12
0,3
+
36
3,74
0,748 -0,3
-0,2
+
38
2,65
0,198 -7,3
-1,7
+
42
4,44
0,454
2,2
0,7
+
44
3,35
0,744 -1,3
-0,7
+
47
4,55
0,5
2,4
0,8
+
49
3,42
1,37
-0,6
-0,6
+
58
3,3
-0,8
+
61
2,18
-2,4
62
3,97
0,1
+
63
3,8
0,3
-0,3
-0,1
+
69
3,92
0,1
+
71
3,79
-0,1
+
73
4,08
1,59
0,3
0,3
+
80
6,7954
3,4
87
4,76
0,54
3,0
1,0
+
89
4,24
0,4
1,6
0,4
+
91
3,98
1,19
0,2
0,1
+
94
3,97
0,53
0,4
0,1
+
99
2,91
0,58
-3,0
-1,3
+
108
4,885
1,1
1,8
1,2
+
119
0,929
-4,1
120
4,03
1,81
0,2
0,2
+
121
3,999
0,06
1,0
0,2
+
124
3,76
-0,1
+
125
4,667
0,3
4,0
0,9
+
132
5,78
2,2
142
2,23
0,3
-8,2
-2,3
143
4,26
0,639
1,2
0,5
+
149
4,1
1,44
0,3
0,3
+
150
4,12
0,08
1,9
0,3
+
151
3,18
0,32
-3,3
-1,0
+
154
5,59
0,4
7,2
2,0
+
156
3,2
0,15
-4,4
-0,9
+
159
4,69
0,9
+
169
1,6
0,5
-8,0
-3,2
170
3,31
0,57
-1,8
-0,8
+
176
4,28
0,856
0,9
0,5
+
177
3,43
-0,6
+
180
3,93
0,1
+
181
2,2
-2,3
183
3,89
0,58
0,1
0,0
+
188
5,09
0,5
4,3
1,4
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-25 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 7
assigned value [mg/l]*
3,862 ± 0,264
upper tolerance limit [mg/l]
5,607
lower tolerance limit [mg/l]
2,434
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
190
2,94
0,12
-6,3
-1,3
+
198
4,1
0,3
+
207
3,84
0,496 -0,1
0,0
+
208
3,76
0,12
-0,7
-0,1
+
214
3,18
0,16
-4,4
-1,0
+
216
4,71
1,0
+
223
4,45
0,7
+
224
3,9
0,8
0,1
0,0
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-26 of C-48
-5
119
169
61
181
142
38
99
190
9
151
214
156
58
170
44
49
177
36
124
208
71
63
207
4
183
224
69
180
62
94
91
121
120
73
149
198
22
150
89
143
176
17
42
223
47
125
159
216
87
108
188
154
132
80
0
119
169
61
181
142
38
99
190
9
151
214
156
58
170
44
49
177
36
124
208
71
63
207
4
183
224
69
180
62
94
91
121
120
73
149
198
22
150
89
143
176
17
42
223
47
125
159
216
87
108
188
154
132
80
PT 5/13
Total petroleum hydrocarbons - 7
8
7
l6
/
g
m
n
i5
n
io
t4
a
rt
n3
e
c
n
o
c2
1
lab code
Total petroleum hydrocarbons - 7
4
3
2
1
re 0
o
c
sU
z -1
-2
-3
-4
lab code
page C-27 of C-48
-10
121
150
190
208
156
214
38
63
125
142
151
17
89
154
4
42
9
207
47
169
188
94
87
170
99
183
143
44
36
224
176
108
91
49
149
73
120
0
142
169
38
190
214
156
151
99
9
170
44
208
49
63
36
207
4
183
224
120
91
73
149
94
176
121
143
89
108
150
17
42
47
87
125
188
154
ζ
PT 5/13
Total petroleum hydrocarbons - 7
2
l
/
g 1,6
m
in1,4
y
t
in1,2
a
tr
1
e
c
n
u0,8
d
e
d0,6
n
a
p0,4
x
e
1,8
0,2
lab code
Total petroleum hydrocarbons - 7
8
6
4
2
e
r 0
o
c
-S
-2
-4
-6
-8
lab code
page C-28 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 8
assigned value [mg/l]*
4,347 ± 0,374
upper tolerance limit [mg/l]
6,875
lower tolerance limit [mg/l]
2,378
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
1
4,25
0,3
-0,4
-0,1
+
2
4,77
0,3
+
7
4,3
8,13
0,0
0,0
+
10
5,58
1,0
+
16
4,65
0,9
0,6
0,2
+
19
4,25
0,13
-0,5
-0,1
+
20
5,54
0,9
+
32
5,101
0,918
1,5
0,6
+
35
3,56
-0,8
+
37
4,505
0,45
0,5
0,1
+
39
4,82
1,51
0,6
0,4
+
41
4,6
0,9
0,5
0,2
+
43
3,441
-0,9
+
46
4,53
0,639
0,5
0,1
+
51
4,12
1,58
-0,3
-0,2
+
53
5,56
1,0
+
54
4,38
0,5
0,1
0,0
+
55
5,49
1,76
1,3
0,9
+
59
3
0,3
-5,6
-1,4
+
60
4,81
0,25
2,1
0,4
+
66
4,49
1,35
0,2
0,1
+
75
4,14
-0,2
+
79
4,94
0,5
+
81
4,45
0,1
+
84
5,17
0,7
+
85
2,42
0,032 -10,3
-2,0
+
96
1,63
-2,8
101
3,75
-0,6
+
104
4,073
0,815 -0,6
-0,3
+
105
4,5
0,1
+
107
5,78
0,42
5,1
1,1
+
115
3,96
-0,4
+
117
3,75
-0,6
+
131
3,95
0,05
-2,1
-0,4
+
133
5,31
0,53
3,0
0,8
+
144
3,4
0,17
-4,6
-1,0
+
145
4,72
0,3
+
148
2,35
-2,0
+
157
5,081
0,6
+
160
5,06
0,6
+
161
6,577
1,8
+
175
3,15
0,63
-3,3
-1,2
+
185
4
-0,4
+
191
3,7
1,43
-0,9
-0,7
+
192
4,38
0,47
0,1
0,0
+
203
5,66
1,0
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-29 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 8
assigned value [mg/l]*
4,347 ± 0,374
upper tolerance limit [mg/l]
6,875
lower tolerance limit [mg/l]
2,378
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
204
2,42
1,36
-2,7
-2,0
+
205
2,91
0,64
-3,9
-1,5
+
208
5,13
0,6
+
212
6,18
0,93
3,7
1,5
+
213
3,09
-1,3
+
225
1,024
0,05 -17,6
-3,4
226
4,99
0,5
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-30 of C-48
-4
225
96
148
85
204
205
59
213
175
144
43
35
191
101
117
131
115
185
104
51
75
1
19
7
54
192
81
66
105
37
46
41
16
145
2
60
39
79
226
160
157
32
208
84
133
55
20
53
10
203
107
212
161
0
225
96
148
85
204
205
59
213
175
144
43
35
191
101
117
131
115
185
104
51
75
1
19
7
54
192
81
66
105
37
46
41
16
145
2
60
39
79
226
160
157
32
208
84
133
55
20
53
10
203
107
212
161
PT 5/13
Total petroleum hydrocarbons - 8
8
7
l6
/
g
m
n
i5
n
io
t4
a
rt
n3
e
c
n
o
c2
1
lab code
Total petroleum hydrocarbons - 8
3
2
1
re 0
o
c
sU
z -1
-2
-3
lab code
page C-31 of C-48
PT 5/13
-
Total petroleum hydrocarbons - 8
9
8
l
/
g7
m
in
6
y
t
in
a
tr 5
e
c
n4
u
d
e3
d
n
a
p2
x
e
51
133
7
39
60
107
191
32
55
204
55
212
66
16
212
32
41
16
104
46
205
175
54
133
37
192
107
1
59
60
144
19
225
85
0
131
1
lab code
Total petroleum hydrocarbons - 8
10
5
0
ζ
e
r
o
c -5
-S
-10
39
37
41
46
66
192
54
7
51
1
19
104
191
131
204
175
205
144
59
85
-20
225
-15
lab code
page C-32 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 9
assigned value [mg/l]*
5,275 ± 0,37
upper tolerance limit [mg/l]
7,728
lower tolerance limit [mg/l]
3,278
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
1
5,25
0,3
-0,1
0,0
+
9
5,14
0,772 -0,3
-0,1
+
12
4,35
-0,9
+
20
6,45
1,0
+
21
6,26
0,8
+
28
6,078
0,2
3,8
0,7
+
32
6,242
1,124
1,6
0,8
+
34
4,95
0,792 -0,7
-0,3
+
35
4,39
-0,9
+
36
4,89
0,978 -0,7
-0,4
+
39
6,06
1,9
0,8
0,6
+
42
5,54
0,338
1,1
0,2
+
55
4,938
1,58
-0,4
-0,3
+
57
5,63
0,3
+
60
6,16
0,31
3,7
0,7
+
62
6,58
1,1
+
68
5,24
0,0
+
69
5,27
0,0
+
71
6,07
0,6
+
74
4,93
-0,3
+
75
4,9
-0,4
+
94
5,54
0,74
0,6
0,2
+
96
2,08
-3,2
97
2,22
0,1
-15,9
-3,1
99
3
0,6
-6,5
-2,3
101
5,24
0,0
+
106
4,3
0,5
-3,1
-1,0
+
112
6
0,6
+
116
4,12
0,05
-6,2
-1,2
+
118
4,23
0,51
-3,3
-1,0
+
121
5,278
0,13
0,0
0,0
+
136
6,31
0,95
2,0
0,8
+
139
5,852
0,5
+
141
3,83
0,012 -7,8
-1,4
+
143
5,74
0,861
1,0
0,4
+
147
4,04
0,2
-5,9
-1,2
+
148
2,81
-2,5
150
5,62
0,24
1,6
0,3
+
152
6,24
0,8
+
153
3,3855
-1,9
+
172
6,35
0,4
3,9
0,9
+
181
3,84
-1,4
+
183
5,83
0,88
1,2
0,5
+
188
7,17
0,7
4,8
1,5
+
192
4,99
0,55
-0,9
-0,3
+
195
5,65
0,3
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-33 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 9
assigned value [mg/l]*
5,275 ± 0,37
upper tolerance limit [mg/l]
7,728
lower tolerance limit [mg/l]
3,278
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
196
4,91
0,006 -2,0
-0,4
+
197
4,52
-0,8
+
198
6,14
0,7
+
200
5,98
0,6
2,0
0,6
+
206
5,73
0,4
+
212
7,16
1,08
3,3
1,5
+
215
4,67
1,28
-0,9
-0,6
+
222
6,55
0,591
3,7
1,0
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-34 of C-48
-4
96
97
148
99
153
141
181
147
116
118
106
12
35
197
215
36
75
196
74
55
34
192
9
68
101
1
69
121
42
94
150
57
195
206
143
183
139
200
112
39
71
28
198
60
152
32
21
136
172
20
222
62
212
188
0
96
97
148
99
153
141
181
147
116
118
106
12
35
197
215
36
75
196
74
55
34
192
9
68
101
1
69
121
42
94
150
57
195
206
143
183
139
200
112
39
71
28
198
60
152
32
21
136
172
20
222
62
212
188
PT 5/13
Total petroleum hydrocarbons - 9
9
8
l7
/
g
m6
n
i
n5
io
t
a
rt 4
n
e
c3
n
o
c
2
1
lab code
Total petroleum hydrocarbons - 9
3
2
1
re 0
o
c
sU
z -1
-2
-3
lab code
page C-35 of C-48
PT 5/13
-
Total petroleum hydrocarbons - 9
2
1,8
l
/
g 1,6
m
in1,4
y
t
in1,2
a
tr
1
e
c
n
u0,8
d
e
d0,6
n
a
p0,4
x
e
32
215
55
39
60
28
172
188
36
136
212
136
200
222
183
32
212
34
143
150
9
183
94
188
99
200
222
192
118
106
42
172
1
60
150
28
147
97
121
116
141
0
196
0,2
lab code
Total petroleum hydrocarbons - 9
10
5
0
ζ
e
r
o
c -5
-S
-10
42
143
39
94
121
1
9
55
36
34
192
215
196
106
118
147
116
99
97
-20
141
-15
lab code
page C-36 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 10
assigned value [mg/l]*
6,127 ± 0,471
upper tolerance limit [mg/l]
9,32
lower tolerance limit [mg/l]
3,583
ζ-score zU-score assessm.
lab code
result [mg/l]
±
2
6,85
0,5
+
3
6,64
0,99
0,9
0,3
+
5
5,05
0,8
-2,3
-0,8
+
13
5,71
2,01
-0,4
-0,3
+
14
4,23
1
-3,4
-1,5
+
15
7,79
0,38
5,5
1,0
+
17
7,69
0,495
4,6
1,0
+
18
6,52
0,2
+
26
7,07
0,99
1,7
0,6
+
30
6,48
0,2
+
31
7,24
0,006
4,7
0,7
+
41
6,39
1,3
0,4
0,2
+
43
5,719
-0,3
+
53
8,86
1,7
+
54
6,04
1,4
-0,1
-0,1
+
63
6,52
0,5
1,1
0,2
+
70
7,08
2,55
0,7
0,6
+
72
3,07
-2,4
79
6,92
0,5
+
82
6,5
0,65
0,9
0,2
+
86
7,83
1,1
+
88
2,473
-2,9
92
4,14
-1,6
+
93
6,07
0,0
+
107
7,32
0,54
3,3
0,7
+
111
7,11
0,853
2,0
0,6
+
117
5,4
-0,6
+
120
6,6
2,97
0,3
0,3
+
122
5,63
35
0,0
-0,4
+
125
5,777
0,3
-1,3
-0,3
+
128
4,63
0,028 -6,3
-1,2
+
129
6,37
0,2
+
131
4,48
0,05
-7,0
-1,3
+
133
7,52
0,75
3,1
0,9
+
134
3,88
1,75
-2,5
-1,8
+
137
5,88
0,11
-1,0
-0,2
+
138
6,1
2,812
0,0
0,0
+
144
4,9
0,25
-4,6
-1,0
+
158
6,5
0,2
+
159
7,21
0,7
+
161
8,237
1,3
+
168
8,087
1,2
+
169
3,4
0,7
-6,5
-2,1
173
6,31
1,11
0,3
0,1
+
174
9,56
1,5
4,4
2,2
177
7,01
0,6
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-37 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 10
assigned value [mg/l]*
6,127 ± 0,471
upper tolerance limit [mg/l]
9,32
lower tolerance limit [mg/l]
3,583
ζ-score zU-score assessm.
lab code
result [mg/l]
±
178
5,64
-0,4
+
186
5,58
-0,4
+
191
4,49
1,74
-1,8
-1,3
+
204
3,69
2,07
-2,3
-1,9
+
211
3,63
0,4
-8,1
-2,0
+
213
6,52
0,2
+
221
5,03
1,3
-1,6
-0,9
+
224
6,9
1
1,4
0,5
+
226
6,65
0,3
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-38 of C-48
-4
88
72
169
211
204
134
92
14
131
191
128
144
221
5
117
186
122
178
13
43
125
137
54
93
138
173
129
41
30
82
158
18
63
213
120
3
226
2
224
79
177
26
70
111
159
31
107
133
17
15
86
168
161
53
174
0
88
72
169
211
204
134
92
14
131
191
128
144
221
5
117
186
122
178
13
43
125
137
54
93
138
173
129
41
30
82
158
18
63
213
120
3
226
2
224
79
177
26
70
111
159
31
107
133
17
15
86
168
161
53
174
PT 5/13
Total petroleum hydrocarbons - 10
12
10
l
/
g
m8
n
i
n
io
t 6
a
rt
n
e
c 4
n
o
c
2
lab code
Total petroleum hydrocarbons - 10
3
2
1
re 0
o
c
sU
z -1
-2
-3
lab code
page C-39 of C-48
PT 5/13
-
Total petroleum hydrocarbons - 10
35
5
4,5
l
/
g 4
m
in3,5
y
t
in 3
a
tr
2,5
e
c
n
u 2
d
e
d1,5
n
a
p 1
x
e
0
31
128
131
137
144
125
15
211
17
63
107
82
169
133
5
111
3
26
14
224
173
41
221
54
174
191
134
13
204
70
138
120
122
0,5
lab code
Total petroleum hydrocarbons - 10
8
6
4
2
-2
-4
-6
-8
-10
211
131
169
128
144
14
134
5
204
191
221
125
137
13
54
122
138
173
120
41
70
82
3
63
224
26
111
133
107
174
17
31
15
ζ
e
r 0
o
c
-S
lab code
page C-40 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 11
assigned value [mg/l]*
6,727 ± 0,364
upper tolerance limit [mg/l]
9,039
lower tolerance limit [mg/l]
4,752
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
7
5,45
8,13
-0,3
-1,3
+
8
6,55
1,31
-0,3
-0,2
+
23
7,33
1,61
0,7
0,5
+
33
6,032
-0,7
+
37
6,537
0,65
-0,5
-0,2
+
44
5,95
1,32
-1,1
-0,8
+
50
4,29
15,5
-0,3
-2,5
51
6,8
2,61
0,1
0,1
+
52
7,14
0,4
+
56
7,56
3,31
0,5
0,7
+
67
6,45
1,94
-0,3
-0,3
+
73
7,54
2,94
0,5
0,7
+
77
8,02
0,12
6,8
1,1
+
78
5,541
0,146 -6,1
-1,2
+
84
7,56
0,7
+
85
4,97
0,032 -9,6
-1,8
+
103
5,17
-1,6
+
104
5,927
1,19
-1,3
-0,8
+
105
6,6
-0,1
+
108
7,657
1,8
1,0
0,8
+
109
6,78
2,03
0,1
0,0
+
115
6,88
0,1
+
126
8,87
1,33
3,1
1,9
+
130
7,97
1,1
+
135
7,12
1,64
0,5
0,3
+
140
6,442
-0,3
+
142
6,21
0,6
-1,5
-0,5
+
146
5,745
-1,0
+
155
5,8
-0,9
+
156
6,04
0,3
-2,9
-0,7
+
157
7,32
0,5
+
160
8,01
1,1
+
162
3,9
0,65
-7,6
-2,9
164
6,15
-0,6
+
165
8,08
1,2
+
166
6,88
0,1
+
167
6,97
0,2
+
171
7,04
1,21
0,5
0,3
+
175
5,05
1,01
-3,1
-1,7
+
179
8,38
1,4
+
180
7,09
0,3
+
182
7,189
0,4
+
190
5,52
0,21
-5,8
-1,2
+
199
7,7
0,8
+
205
6,49
1,43
-0,3
-0,2
+
207
6,77
0,874
0,1
0,0
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-41 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 11
assigned value [mg/l]*
6,727 ± 0,364
upper tolerance limit [mg/l]
9,039
lower tolerance limit [mg/l]
4,752
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
208
7,25
0,89
1,1
0,5
+
208
7,1
0,3
+
216
7,71
0,9
+
219
6,73
0,665
0,0
0,0
+
220
6,26
0,71
-1,2
-0,5
+
223
8,31
1,4
+
225
5,998
0,05
-4,0
-0,7
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-42 of C-48
-4
162
50
85
175
103
7
190
78
146
155
104
44
225
33
156
164
142
220
140
67
205
37
8
105
219
207
109
51
115
166
167
171
180
208
135
52
182
208
157
23
73
56
84
108
199
216
130
160
77
165
223
179
126
0
162
50
85
175
103
7
190
78
146
155
104
44
225
33
156
164
142
220
140
67
205
37
8
105
219
207
109
51
115
166
167
171
180
208
135
52
182
208
157
23
73
56
84
108
199
216
130
160
77
165
223
179
126
PT 5/13
Total petroleum hydrocarbons - 11
10
9
l
/
g 7
m
n
i 6
n
io
t 5
a
rt
n 4
e
c
n 3
o
c
8
2
1
lab code
Total petroleum hydrocarbons - 11
3
2
1
re 0
o
c
sU
z -1
-2
-3
lab code
page C-43 of C-48
PT 5/13
-
Total petroleum hydrocarbons - 11
18
16
l
/
g 14
m
in
12
y
t
in
a
tr 10
e
c
n 8
u
d
e 6
d
n
a
p 4
x
e
56
7
50
208
126
77
73
73
67
109
56
51
108
171
23
135
135
108
23
207
205
126
8
44
171
104
175
208
207
220
219
37
162
142
156
78
190
77
85
0
225
2
lab code
Total petroleum hydrocarbons - 11
8
6
4
2
0
-4
-6
-8
51
109
219
8
67
7
50
205
37
44
220
104
142
156
175
225
190
78
-12
162
-10
85
ζ
e
r
o
c -2
-S
lab code
page C-44 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 12
assigned value [mg/l]*
7,746 ± 0,496
upper tolerance limit [mg/l]
11,02
lower tolerance limit [mg/l]
5,032
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
4
7,87
0,85
0,3
0,1
+
10
10,21
1,5
+
16
8,06
1,6
0,4
0,2
+
19
7,55
0,22
-0,7
-0,1
+
22
8,3
0,3
+
24
8,69
0,87
1,9
0,6
+
25
10,2
6,36
0,8
1,5
+
27
4,12
0,824 -7,5
-2,7
38
5,96
0,278 -6,3
-1,3
+
40
8,4
0,014
2,6
0,4
+
45
7,561
1,539 -0,2
-0,1
+
46
7,94
1,12
0,3
0,1
+
47
9,71
0,5
5,6
1,2
+
48
7,54
-0,2
+
49
7,14
2,86
-0,4
-0,4
+
58
7,52
-0,2
+
59
0,8
0,1
-27,5
-5,1
61
5,34
-1,8
+
65
5,17
1,55
-3,2
-1,9
+
66
5,99
1,8
-1,9
-1,3
+
76
8,62
0,8
1,9
0,5
+
80
13,433
3,5
81
7,54
-0,2
+
83
7,34
-0,3
+
87
10,15
0,14
9,3
1,5
+
89
8,15
0,8
0,9
0,2
+
91
8,18
2,45
0,3
0,3
+
95
8,81
0,6
+
98
8,59
1,72
0,9
0,5
+
100
7,946
0,1
+
113
8,64
0,5
+
114
6,43
0,02
-5,3
-1,0
+
119
6,38
-1,0
+
123
5,2
1,04
-4,4
-1,9
+
124
7,9
0,1
+
127
9,583
1,28
2,7
1,1
+
132
9,59
1,1
+
145
7,57
-0,1
+
149
8,28
2,9
0,4
0,3
+
151
6,22
0,63
-3,8
-1,1
+
154
9,17
1,64
1,7
0,9
+
163
7,85
0,8
0,2
0,1
+
170
6,59
0,06
-4,6
-0,9
+
176
7,5
1,5
-0,3
-0,2
+
184
9,26
0,9
+
185
8,54
0,5
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-45 of C-48
PT 5/13
-
PT 5/13
Total petroleum hydrocarbons - 12
assigned value [mg/l]*
7,746 ± 0,496
upper tolerance limit [mg/l]
11,02
lower tolerance limit [mg/l]
5,032
ζ-score
zU-score assessm.
lab code
result [mg/l]
±
187
8,52
0,012
3,1
0,5
+
193
7,84
0,7
0,2
0,1
+
194
4,66
-2,3
203
8,24
0,3
+
210
7,193
-0,4
+
214
6,12
0,31
-5,6
-1,2
+
217
6,39
1,3
-1,9
-1,0
+
218
8,28
0,83
1,1
0,3
+
229
6,544
-0,9
+
* The stated uncertainty of the assigned value is the expanded
uncertainty with a coverage factor k=2 corresponding to a
confidence level of about 95%
page C-46 of C-48
-6
59
27
194
65
123
61
38
66
214
151
119
217
114
229
170
49
210
83
176
58
48
81
19
45
145
193
163
4
124
46
100
16
89
91
203
149
218
22
40
187
185
98
76
113
24
95
154
184
127
132
47
87
25
10
80
0
59
27
194
65
123
61
38
66
214
151
119
217
114
229
170
49
210
83
176
58
48
81
19
45
145
193
163
4
124
46
100
16
89
91
203
149
218
22
40
187
185
98
76
113
24
95
154
184
127
132
47
87
25
10
80
PT 5/13
Total petroleum hydrocarbons - 12
16
14
l 12
/
g
m
n
i 10
n
io
t 8
a
rt
n 6
e
c
n
o
c 4
2
lab code
Total petroleum hydrocarbons - 12
4
3
2
1
re
o
c -1
sU
z
0
-2
-3
-4
-5
lab code
page C-47 of C-48
PT 5/13
-
Total petroleum hydrocarbons - 12
7
l6
/
g
m
in5
y
t
in4
a
tr
e
c
n3
u
d
e
d2
n
a
p
x
e1
187
40
114
170
59
87
19
38
214
47
151
193
76
89
163
27
218
4
24
123
46
127
217
176
45
65
16
154
98
66
91
49
149
25
0
lab code
Total petroleum hydrocarbons - 12
15
10
5
0
-10
-15
-20
-25
-30
59
27
38
214
114
170
123
151
65
217
66
19
49
176
45
193
163
4
46
91
149
16
25
89
98
218
154
76
24
40
127
187
47
87
ζ
e
r -5
o
c
-S
lab code
page C-48 of C-48