MEMPHIS REFINERY
STANDARD PROCEDURES
Revision Date
Annual Certification
Original Date: April 2007
2009
2010
2011
2012
2013
Date
GENERAL
Sampling Procedures
2009
2010
2011
2012
2013
Key Sections of this procedure include:
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All-Levels Sample from storage tanks or marine vessel
Tank Spigot or Tap Sample
Tank or marine vessel Zone or Spot Sample (Top, Upper, Middle, Lower, Outlet, Bottom)
Single tank Composite Sample
Marine vessel multiple compartments Composite Sample
Pipeline Tap Spot Sample
Note: Always inspect the sample station, drains and associated piping for proper operation prior to
each use. And make sure all sample valves are closed prior to leaving the sample station.
!
83 Tank has a nitrogen blanket on the vapor space. Pumpers are required to have
fresh air and standby person when sampling the tank.
Note: Commercial jet fuel is one of the highest quality products produced by the petroleum industry.
It is quite sensitive to contamination by water, particulates, and microscopic quantities of both
petroleum and non-petroleum residues. Sampling of this product is a task that must be approached
with a serious attention to detail by anyone performing the task.
Labeling Guidelines: All samples drawn should be immediately tagged with the following
information written in indelible ink:

Product Name (abbreviations not acceptable)

Sample source (i.e. tank number, barge number, truck etc.)

Type of sample (i.e. Upper, Middle, Lower, All Levels, etc.)

Individual’s name taking sample

Date and time sample is obtained

Samples being shipped must meet all Hazardous Material Shipping and IATA regulations
(for air shipments)

For samples which are drawn off company premises and are intended for transport
through Public Domain (i.e. public highway or road), refer to Safety Requirements later
in this document.
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ALL-LEVELS SAMPLING PROCEDURE
An All Levels sample is a representative sample from all levels of the storage tank or marine
vessel compartment being sampled. It is obtained from the top of the tank or marine vessel
compartment by lowering a closed sample container to a point as close as possible to the height
of the storage tank draw-off level or 10 % of the liquid depth above the bottom, then opening the
sampling container and then quickly raising the container so that it is filled to between 75% -85%
full upon reaching the surface. If less than 75% full or greater than 85% full the sample may not
be used and the procedure must be repeated.
Note: For aviation fuels, all sample containers shall meet requirements noted in Equipment
Requirements section later in this document.
Time Date Initial
_____ _____ _____1.
Ensure storage vessel to be sampled is segregated and blocked off from
all external inflows and outflows of product.
_____ _____ _____2.
Go to sampling hatch. Prevent any potential static electrical discharges
by touching hand to bare metal.
_____ _____ _____3.
Open hatch slowly to allow a bleeding of any built up pressure.
_____ _____ _____4.
Attach clean, dry cotton cord to lift eye on stainless steel sample
basket.
_____ _____ _____5.
Place quart-sized sample container into stainless steel sample basket
and secure with retainer link. This is now a sampling assembly.
Touch sampling assembly to bare metal away from open sampling
hatch in order to dissipate any potential static electrical charge.
Submerge sampling assembly. Allow container to fill with product.
Remove sampling assembly from product in tank.
Note: All sample containers must be triple rinsed with product to be sampled prior to taking the
actual sample. If the sample bottle in the sample assembly is the final sample bottle, it must be
lowered, filled and emptied three times to be properly rinsed before taking the sample. If the
sample bottle in the sample assembly is not the final sample container, product must be
transferred to the sample container so that it can be triple rinsed by swirling product, emptying
and refilling 3 times.
_____ _____ _____6.
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Once containers have been rinsed mount stopper/cork into neck of
glass container and secure in sample basket. Lower the sample
assembly slowly to a point about the height of the storage tank side
outlet or 10 % of the liquid depth above the bottom. This should be
accomplished by measuring the cord for the approximate depth before
lowering the sampling devise.
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_____ _____ _____7.
STANDARD PROCEDURES
Give the cord a sharp jerk to release the stopper/cork. Quickly pull the
basket out of the tank at a steady rate. The container should be 7585% full.
Note: If the container is less than 75% full or completely full, the sample is not a representative
All-Levels sample. Empty the contents back into the storage vessel and repeat process adjusting
the rate at which the basket is drawn from the storage vessel until 75-85% fill is attained.
_____ _____ _____8.
Pour product into final sample container if the bottle in the sample
assembly is not the final sample container.
_____ _____ _____9.
Repeat as necessary to fill the final sample container no more than
85% full. (to allow for expansion of fuel in sample)
_____ _____ _____10.
Label sample per Labeling Guidelines on Page 1 of this procedure and
deliver promptly to the Lab for testing.
_____ _____ _____11.
Dispose of all consumables (cotton cord, gloves, etc.) in a manner
consistent with HAZMAT requirements. Wipe sample basket with
disposable cloth and store so that it is not exposed to weather.
_____ _____ _____12.
Log Samples into the appropriate “Pumper’s Lab Samples Received
Log Book.”
SPIGOT OR TAP SAMPLING PROCEDURE
Sample drawn from a spigot or tap located at a specific point on the shell of a storage tank vessel.
_____ _____ _____1.
Ensure storage tank to be sampled is segregated and blocked off from
all external inflows and outflows of product.
_____ _____ _____2.
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Determine the type of sample required.
Upper sample is taken from the middle of the upper 1/3 of the product.
A distance of 1/6 of the depth of the liquid below the liquid surface.
Middle sample is taken at the mid-point of the height of the product.
Lower sample is taken from the middle of the lower 1/3 of the product.
A distance of 5/6 of the depth of the liquid below the liquid surface.
Outlet sample is taken with the sampling assembly at the level of the
bottom of the tank’s outlet nozzle.
Composite (sample based on table below)
Tank Level
Lower
Less than 10 feet
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Upper
X
Greater than 10 feet, less than 15 feet
X
Greater than 15 feet
X
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Middle
X
X
X
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_____ _____ _____3.
Locate the Automatic Tank Gauge (ATG) and read current liquid level
in tank. If tank is not equipped with an ATG, use a manual tape and
hand gauge liquid level from hatch on top of tank.
_____ _____ _____4.
The spigot(s) to be used are those closest to the locations described
above for the sample being obtained.
_____ _____ _____5.
Touch hand to bare metal in order to dissipate any potential static
charge. Open each spigot in turn and drain the full contents of the
sample line out into the sump to insure the sample is representative of
tank contents. If sample line volume is unknown, allow product to
drain out the spigot for a minimum of 5 minutes.
_____ _____ _____6.
Place sample container under Upper most spigot and drain enough
product to cover bottom inch of container. Screw container cap on
hand tight. Rinse internal surfaces of container by swirling product
around in a circular motion.
_____ _____ _____7.
Open container and pour product into sump. Repeat rinsing process
twice more to ensure container is free of moisture and particulates.
_____ _____ _____8.
Fill sample container to approximately 85% full. Re-mount container
cap and screw on until snug.
Note: If visual contamination is observed in the sample bottle, more than one sampling may be
required to clear it. If the first sample shows dirt and/or water visually, properly discard the
sample; clean the sample container; check the sampling port to be sure it is free of rust, etc.; draw
another sample and repeat the visual check.
Particulate determination in the visual appearance test is sensitive to sampling procedures. The
presence of a small number of particles may indicate, for example, that the sample tap may not
be clean or the sample line was not flushed to provide a representative sample. The persistent
presence of even a small number of particles, however, is cause for further investigation.
_____ _____ _____9.
Repeat sampling for other locations as necessary.
_____ _____ _____10.
Label sample per Labeling Guidelines on Page 1 of this procedure and
deliver promptly to the Lab for testing.
_____ _____ _____11.
Dispose of all consumables (cotton cord, gloves, etc.) in a manner
consistent with HAZMAT requirements. Wipe sample basket with
disposable cloth and store so that it is not exposed to weather.
_____ _____ _____12.
Log Samples into the appropriate “Pumper’s Lab Samples Received
Log Book.”
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ZONE OR SPOT SAMPLING PROCEDURE
Zone or Spot Sample - A sample taken at a specific location in a storage tank or vessel. For
example, a Top, Upper, Middle, Lower, Outlet or Bottom sample obtained manually by lowering
a closed sample container to a specific layer, opening it, allowing the container to fill completely,
and then raising it to the surface of the product.
 Top sample is taken 6 inches below the surface of the product.
 Upper sample is taken from the middle of the upper 1/3 of the product. A distance of 1/6 of
the depth of the liquid below the liquid surface.
 Middle sample is taken at the mid-point of the height of the product.
 Lower sample is taken from the middle of the lower 1/3 of the product. A distance of 5/6 of
the depth of the liquid below the liquid surface.
 Outlet sample is taken with the sampling assembly at the level of the bottom of the tank’s
outlet nozzle.
 Bottom spot sample is taken as close to the bottom of the tank or vessel as possible.
 Other Zone or Spot samples can be taken at various levels in the tank or vessel as a means to
determine if the product has stratified or to locate a contaminant, e g., gasoline in jet fuel.
Objective: Obtain a representative sample from a specific location within a storage tank or
vessel.
_____ _____ _____1.
Ensure storage tank or vessel to be sampled is segregated and blocked
off from all external inflows and outflows of product. Locate
Automatic Gauge (ATG) and read current liquid level in storage
vessel. If storage tank is not equipped with an ATG, use a manual tape
and hand gauge liquid level.
_____ _____ _____2.
Go to sampling hatch. Prevent any potential static electrical discharge
by touching hand to bare metal.
_____ _____ _____3.
Open hatch slowly to allow a bleeding of any built up pressure.
_____ _____ _____4.
Attach clean, dry cotton cord to lift eye on stainless steel sample
basket.
_____ _____ _____5.
Place quart-sized sample container into stainless steel sample basket
and secure with retainer link. This is now a sampling assembly.
Touch sampling assembly to bare metal away from open sampling
hatch in order to dissipate any potential static electrical charge.
Submerge sampling assembly. Allow container to fill with product.
Remove sampling assembly from product in tank or vessel.
Note: All sample containers must be triple rinsed with product to be sampled prior to taking the
actual sample. If the sample bottle in the sample assembly is the final sample bottle, it must be
lowered, filled and emptied three times to be properly rinsed before taking the sample. If the
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sample bottle in the sample assembly is not the final sample container, product must be
transferred to the sample container so that it can be triple rinsed by swirling product, emptying
and refilling 3 times.
_____ _____ _____6.
Once containers have been rinsed, mount stopper into neck of sample
container. Again, touch sample basket to bare metal away from open
sampling hatch in order to dissipate any potential static electrical
charge. Lower the sample assembly to the appropriate level in the tank
for the type of sample you are taking. Refer to level definitions at the
beginning of this procedure. This should be accomplished by
measuring the cord for the approximate depth before lowering the
sampling device. Give cord a sharp jerk to release stopper/cork and
wait several moments for sample bottle to fill.
_____ _____ _____7.
Pull sample assembly out of tank. If bottle in the sampling assembly is
not the final sample container, decant product into final sample
container and repeat as necessary until final container is approximately
85% full.
_____ _____ _____8.
Label sample per Labeling Guidelines on Page 1 of this procedure and
deliver promptly to the Lab for testing.
_____ _____ _____9.
Dispose of all consumables (cotton cord, gloves, etc.) in a manner
consistent with HAZMAT requirements. Wipe sample basket with
disposable cloth and store so that it is not exposed to weather.
_____ _____ _____10.
Log Samples into the appropriate “Pumper’s Lab Samples Received
Log Book.”
SINGLE TANK COMPOSITE SAMPLE
Blend of equal portions of the Upper, Middle and Lower samples obtained from a tank or marine
vessel compartment.
_____ _____ _____11.
Ensure storage tank or vessel to be sampled is segregated and blocked
off from all external inflows and outflows of product. Locate
Automatic Gauge (ATG) and read current liquid level in storage
vessel. If storage tank is not equipped with an ATG, use a manual tape
and hand gauge liquid level.
_____ _____ _____12.
Determine method of sampling required (Zone/Spot Sampling or
Spigot/Tap Sampling), take Upper, Middle and Lower samples
according to the method of sampling being used. (Refer to procedures
above)
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_____ _____ _____13.
Combine equal portions of Upper, Middle and Lower samples from the
tank or vessel into one composite sample.
_____ _____ _____14.
Label sample per Labeling Guidelines on Page 1 of this procedure and
deliver promptly to the Lab for testing.
_____ _____ _____15.
Dispose of all consumables (cotton cord, gloves, etc.) in a manner
consistent with HAZMAT requirements. Wipe sample basket with
disposable cloth and store so that it is not exposed to weather.
_____ _____ _____16.
Log Samples into the appropriate “Pumper’s Lab Samples Received
Log Book.”
MULTIPLE COMPARTMENT COMPOSITE SAMPLE
Blend of individual All-Levels samples from several compartments of a marine vessel. Mixture
is blended in proportion to the volume of product in each of the compartments.
_____ _____ _____1.
Ensure storage tank or vessel to be sampled is segregated and blocked
off from all external inflows and outflows of product. Locate
Automatic Gauge (ATG) and read current liquid level in storage
vessel. If storage tank is not equipped with an ATG, use a manual tape
and hand gauge liquid level.
_____ _____ _____2.
Using the All-Levels sample procedure, take all-levels samples from
each compartment of the marine vessel.
_____ _____ _____3.
Combine the individual All-Levels compartment samples in proportion
to the volume of product in each compartment into one multicompartment composite sample.
_____ _____ _____4.
Label sample per Labeling Guidelines on Page 1 of this procedure and
deliver promptly to the Lab for testing.
_____ _____ _____5.
Dispose of all consumables (cotton cord, gloves, etc.) in a manner
consistent with HAZMAT requirements. Wipe sample basket with
disposable cloth and store so that it is not exposed to weather.
_____ _____ _____6.
Log Samples into the appropriate “Pumper’s Lab Samples Received
Log Book.
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PIPELINE TAP SPOT SAMPLE
Pipeline Tap spot samples are taken from a flowing stream in a pipe using Tap Sample
connections on the pipeline usually located at the point of product transfer on the pipeline receipt
or marine vessel unloading line, the tank truck loading rack line, or the pipeline to the airport.
_____ _____ _____1.
_____ _____ _____2.
Go to pipeline tap sample connection point.
Place a container (not the sample container) under spigot and flush
sample tap connection to clear residual product and particulate matter
from line.
_____ _____ _____3.
Place sample container under spigot and drain enough product to cover
bottom inch of container. Screw container cap on hand tight. Rinse
internal surfaces of container by swirling product around in a circular
motion.
_____ _____ _____4.
Repeat rinsing process twice more to ensure container is free of
moisture and particulates.
_____ _____ _____5.
Once sample container has been rinsed, place container under spigot
and fill sample container to approximately 85% full. Re-mount
container cap and screw on until snug.
_____ _____ _____6.
Label sample per Labeling Guidelines on Page 1 of this procedure and
deliver promptly to the Lab for testing.
_____ _____ _____7.
Dispose of all consumables (gloves, etc.) in a manner consistent with
HAZMAT requirements.
_____ _____ _____8.
Log Samples into the appropriate “Pumper’s Lab Samples Received
Log Book
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PROCEDURE INFORMATION
Purpose:
Proper sampling is vital to assure that the sample being tested accurately represents
the general characteristics and average condition of the aviation fuel. Special precautions,
procedures, extreme care and good judgment must be used for samples. Correct sampling
procedures are the most important steps in identifying both on specification or contaminated product.
Improper sample containers or badly drawn, non-representative samples will invalidate laboratory
tests. Samples should be taken in accordance with ASTM D 4057.
References:
 American Petroleum Institute “Manual of Petroleum Measurement Standards”, Chapter
8.1 Manual Sampling of Petroleum and Petroleum Products.
 American Society for Testing of Materials Manual 5, “Manual of Aviation Fuel Quality
Procedures”, 2nd Edition
 ASTM D 4306 “Standard Practice for Aviation Fuel Sample Containers for Tests
Affected by Trace Contamination”.
Prerequisites: The product(s) involved in this procedure must be of adequate quality and quantity for
the stated purpose.
Responsibility:
It is the responsibility of the persons taking samples (pumpers, inspectors,
dock operators, etc.) to carry out this procedure in a safe and timely manner. If problems are
encountered (i.e. leaks) the person taking the sample has authority to stop the procedure to control
the problem.
Materials & Equipment:
 Proper sample bottles/cans and possibly metal seals must be available to perform this
procedure. (see quality section for additional information)
 Stainless steel sample basket with cork or rubber stopper. Length of clean, dry, cotton
cord equal to tank vessel height plus 10 feet.
Safety:
Special or Unique Hazards
 Benzene may be present in gasoline range products.
 Static electricity can be generated during this procedure. Extra caution should be taken to
properly ground yourself and any equipment before gauging or sampling that may be required as
part of this procedure.
Engineering Controls:
No unique engineering controls are applicable to this procedure.
Personal Protective Equipment (PPE):
Normal Tank Farm personal protective equipment must
be worn at all times. This includes Hard Hats, Fire Retardant Clothing, Safety Glasses and Safety
Shoes. Additional protective equipment may be required per permit requirements.
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Safety Systems:
 For samples which are drawn off company premises and are intended for transport
through Public Domain (i.e. public highway or road), the sample tag must include the
location, facility, and/or municipality where the sampled storage vessel may be found.
Samples transported in this manner must be secured in a U.S. Dept. of Transportation
approved cargo box. The driver of the transport vehicle must have a written Bill of
Lading detailing the name of the products being transported, the number of samples of
each product, and their NFPA code.
 Jet-A fuel is a combustible. Keep samples and equipment away from heat, sparks, and
open flame. Keep all containers closed when not filling or emptying them. Sample
product in open areas with adequate ventilation. Avoid breathing vapor or mist. Avoid
prolonged or repeated contact with skin.
 Jet-A is not a naturally conductive media. Handling and pumping can cause the build-up
of static electricity. Due care should be exercised at all times to prevent a spark or
subsequent discharge of electricity by properly grounding of the body and all equipment
used in the sampling process. Individuals should also refrain from wearing clothing made
of synthetic fibers while sampling this product. When taking product samples into or
with metal containers, e.g., white bucket, make a bonding connection between the sample
container and the sampling source or disposal vessel to allow product to discharge static
electricity.
Shutdowns: None applicable
Relief: None applicable
Quality Requirements:
 Jet fuel sample containers should be new internally epoxy coated metal cans or new amber
colored, hard borosilicate glass. Clear glass bottles shall only be used when performing
visual inspections. Containers made of any other plastic material or of non-epoxy coated
metal are unacceptable. Container caps or closures must also be of a compatible material.
 Internally coated metal containers are the preferred type of container used for Jet-A samples.
The containers are lined internally with a pigmented baked epoxy phenolic finish which is
free of any extractable curing agents. Some coatings contain curing agents which can leach
into the fuel over a period of a few days, causing degradation of MSEP, water reaction,
thermal stability and electrical conductivity properties of the Jet-A fuel. Only containers
approved for aviation fuel by ASTM D 4306 should be used. New containers should be
flushed three times with the container filled about 20 % with the product being sampled.
 Sample containers used for visual checks or sump sampling should be clear, hard
borosilicate glass. All samples must be drawn by means which directly access the bulk of
the product. No samples should be drawn through un-slotted gauge poles or stand-pipes
on a storage vessel, since the product is usually not representative of what is in the tank.
Stand pipe samples should only be taken from pipes with at least two rows of overlapping
slots.
 Containers must be clean and dry before use. Any container that is suspect of having
residues of commercial detergents, chemical surfactants, agricultural fertilizers, or other
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STANDARD PROCEDURES
surface active agents must be discarded.
All sample containers should be rinsed with the intended product no less than three times
before drawing the final sample. The exceptions to this are sump samples and visual
check samples.
The individual performing the sampling task must have clean hands or gloves. The
equipment used for sampling must be maintained in a clean, dry condition in a clean dry
environment. All equipment used must be inspected immediately before use.
Upon completion of the act of drawing the sample, the sample container should be
“capped” or closed immediately.
All sample containers must be clean and free of observable moisture before usage.
Sample containers to be used for diesel fuel conductivity testing shall be thoroughly
cleaned with a cleaning solvent. Use isopropyl alcohol if water is suspected followed by
analytical grade toluene. (a mixture of 50% volume analytical grade isopropanol and 50%
volume analytical grade heptane is a satisfactory substitute for toluene.) Containers must
then be air dried prior to use.
Hydrocarbon Quality:
Inventory:
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Not applicable
There will be no net impact on inventory while carrying out this procedure
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STANDARD PROCEDURES
Operating Limits:
Description
Limits
Consequences of Deviation
Corrective and Avoidance Steps
N/A
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Chemical Safety:
General information is provided here. Additional information is available from the MSDS sheets for individual chemicals in
question.
Chemical Name
Properties
Hazards
Actions if Exposed
 In case of skin contact, immediately wash with
 Vapors can burn or explode on
soap and water. Seek medical attention if
contact with a source of ignition in
irritation develops.
the presence of air or oxygen.
Hydrocarbon
 In case of eye contact, immediately flush eyes
 Vapors can contain H2S Gas
Liquids: Gasoline
with water for 15 minutes including under the
(All Grades) /
 Contact with liquid can be
Flammable liquids
eyelids, and seek medical attention.
Gasoline Blend
irritating to the skin and eyes.
 If swallowed seek medical attention
Stocks / Naphtha
Ingestion or inhalation in severe
immediately. Do not induce vomiting.
Feedstocks
cases may result in death.
 If inhaled, remove to fresh air. If not
 See specific MSDS Sheets for
breathing, give artificial respiration. Seek
additional information.
medical attention immediately.
 In case of skin contact, immediately wash with
soap and water. Seek medical attention if
 Diesel is combustible.
irritation develops.
 Can irritate skin and respiratory  In case of eye contact, immediately flush eyes
Hydrocarbon
A water white to
tract.
with water for 15 minutes including under the
Liquids: Kerosene /
yellow to yelloweyelids, and seek medical attention.
Jet Fuels (All
 Concentrated vapors may cause
brown, oily liquid
Types), Low and
nausea and dizziness.
 If swallowed seek medical attention
with a petroleum odor
High Sulfur Diesels
immediately. Do not induce vomiting.
 See specific MSDS Sheets for
additional information.
 If inhaled, remove to fresh air. If not
breathing, give artificial respiration. Seek
medical attention immediately.
 Contact with liquid can be  In case of skin contact, immediately wash with
Hydrocarbon
Viscous - Dark Green
irritating to the skin and eyes.
soap and water. Seek medical attention if
Liquids: Gas Oils,
to Black Combustible
irritation develops.
Slurries, #6 Oil,
 Ingestion or inhalation in severe
liquids
Asphalts (All
cases may result in death.
 In case of eye contact, immediately flush eyes
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General information is provided here. Additional information is available from the MSDS sheets for individual chemicals in
question.
Chemical Name
Hazards
Actions if Exposed
Grades)
 See Specific MSDS Sheets for
additional information.
Hydrocarbon
Liquids: Crude Oils
 Vapors can burn or explode on
contact with a source of ignition in
the presence of air or oxygen.
 Contact with liquid can be
irritating to the skin and eyes.
 Ingestion or inhalation in severe
cases may result in death.
 See specific MSDS for
additional information.
with water for 15 minutes including under the
eyelids, and seek medical attention.
 If swallowed seek medical attention
immediately. Do not induce vomiting.
 If inhaled, remove to fresh air. If not
breathing, give artificial respiration. Seek
medical attention immediately.
 In case of skin contact, immediately wash with
soap and water. Seek medical attention if
irritation develops.
 In case of eye contact, immediately flush eyes
with water for 15 minutes including under the
eyelids, and seek medical attention.
 If swallowed seek medical attention
immediately. Do not induce vomiting.
 If inhaled, remove to fresh air. If not
breathing, give artificial respiration. Seek
medical attention immediately.
Hydrocarbon
Vapors with H2S
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Properties
Black - Flammable
liquids
Flammable Gas
 This is a toxic gas that can be
fatal if inhaled.
 This gas is an eye and  If inhaled, remove to fresh air. If not
breathing, give artificial respiration.
respiratory irritant.
 Hydrocarbon vapors can burn or  Seek Medical Attention immediately
explode on contact with a source of  Always use an air pack when rescuing or
ignition in the presence of air or
moving a person to fresh air so that you do
oxygen.
not also become a victim.
 See specific MSDS Sheets for
additional information.
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