ASTM D1265-11(2017)e1

Standard Practice for Sampling Liquefied Petroleum (LP) Gases, Manual Method

SIGNIFICANCE AND USE
5.1 Samples of liquefied petroleum gases are examined by various test methods to determine physical and chemical characteristics and conformance with specifications.  
5.2 Equipment described by this practice may be suitable for transportation of LPG samples, subject to applicable transportation regulations.
SCOPE
1.1 This practice covers equipment and procedures for obtaining a representative sample of specification Liquefied Petroleum Gas (LPG), such as specified in Specification D1835, GPA 2140, and comparable international standards.  
1.2 This practice is suitable for obtaining representative samples for all routine tests for LP gases required by Specification D1835. In the event of a dispute involving sample integrity when sampling for testing against Specification D1835 requirements, Practice D3700 shall be used as the referee sampling procedure.  
1.3 This practice may also be used for other Natural Gas Liquid (NGL) products that are normally single phase (NGL mix, field butane, etc.), defined in other industry specifications or contractual agreements. It is not intended for non-specification products that contain significant quantities of undissolved gases (N2, CO2), free water or other separated phases, such as raw or unprocessed gas/liquids mixtures and related materials. The same equipment can be used for these purposes, but additional precautions are generally needed to obtain representative samples of multiphase products (see Appendix X1 on Sampling Guidelines in Practice D3700).
Note 1: Practice D3700 describes a recommended practice for obtaining a representative sample of a light hydrocarbon fluid and the subsequent preparation of that sample for laboratory analysis when dissolved gases are present. Use of Practice D1265 will result in a small but predictable low bias for dissolved gases due to the liquid venting procedure to establish the 20 % minimum ullage.  
1.4 This practice includes recommendations for the location of a sample point in a line or vessel. It is the responsibility of the user to ensure that the sampling point is located so as to obtain a representative sample.  
1.5 The values stated in SI units are to be regarded as standard.  
1.5.1 Exception—Non-SI units are shown in parentheses for information only.  
1.6  This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Historical
• Publication Date: 30-Apr-2017
• ICS: 75.160.30 - Gaseous fuels
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.H0 - Liquefied Petroleum Gas

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
´1
Designation:D1265 −11 (Reapproved 2017)
Standard Practice for
Sampling Liquefied Petroleum (LP) Gases, Manual Method
This standard is issued under the fixed designation D1265; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
ε NOTE—SI units formatting was corrected editorially in July 2017.
1. Scope 1.5.1 Exception—Non-SI units are shown in parentheses for
information only.
1.1 This practice covers equipment and procedures for
1.6 This standard does not purport to address all of the
obtaining a representative sample of specification Liquefied
safety concerns, if any, associated with its use. It is the
Petroleum Gas (LPG), such as specified in Specification
responsibility of the user of this standard to establish appro-
D1835, GPA 2140, and comparable international standards.
priate safety and health practices and determine the applica-
1.2 This practice is suitable for obtaining representative
bility of regulatory limitations prior to use.
samples for all routine tests for LP gases required by Specifi-
1.7 This international standard was developed in accor-
cation D1835. In the event of a dispute involving sample
dance with internationally recognized principles on standard-
integrity when sampling for testing against Specification
ization established in the Decision on Principles for the
D1835 requirements, Practice D3700 shall be used as the
Development of International Standards, Guides and Recom-
referee sampling procedure.
mendations issued by the World Trade Organization Technical
1.3 This practice may also be used for other Natural Gas Barriers to Trade (TBT) Committee.
Liquid (NGL) products that are normally single phase (NGL
2. Referenced Documents
mix, field butane, etc.), defined in other industry specifications
2.1 ASTM Standards:
or contractual agreements. It is not intended for non-
D1835 Specification for Liquefied Petroleum (LP) Gases
specification products that contain significant quantities of
D3700 Practice for Obtaining LPG Samples Using a Float-
undissolved gases (N,CO ), free water or other separated
2 2
ing Piston Cylinder
phases, such as raw or unprocessed gas/liquids mixtures and
2.2 Other Regulations:
related materials. The same equipment can be used for these
Canadian Transportation of Dangerous Goods Regulations
purposes, but additional precautions are generally needed to
GPA 2140 Gas Processors Association Liquefied Petroleum
obtain representative samples of multiphase products (see
Gas Specifications & Test Methods
Appendix X1 on Sampling Guidelines in Practice D3700).
IATA Transportation of Dangerous Goods by Air
NOTE 1—Practice D3700 describes a recommended practice for obtain-
ing a representative sample of a light hydrocarbon fluid and the subse-
U.S. CFR 49 Transportation
quent preparation of that sample for laboratory analysis when dissolved
gases are present. Use of Practice D1265 will result in a small but 3. Terminology
predictable low bias for dissolved gases due to the liquid venting
3.1 Definitions:
procedure to establish the 20 % minimum ullage.
3.1.1 high pressure sample cylinder, n—a container used for
1.4 This practice includes recommendations for the location
storage and transportation of a sample obtained at pressures
of a sample point in a line or vessel. It is the responsibility of
above atmospheric pressure.
the user to ensure that the sampling point is located so as to
obtain a representative sample.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
1.5 The values stated in SI units are to be regarded as
Standards volume information, refer to the standard’s Document Summary page on
standard.
the ASTM website.
Available from the Canadian General Standards Board, Sales Centre, Gatineau,
Canada K1A 1G6, http://www.ongc-cgsb.gc.ca/.
Available from Gas ProcessorsAssociation (GPA), 6526 E. 60th St.,Tulsa, OK
This practice is under the jurisdiction ofASTM Committee D02 on Petroleum 74145, http://www.gpaglobal.org.
Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcom- Available from IATA Customer Care, 800 Place Victoria, PO Box 113,
mittee D02.H0 on Liquefied Petroleum Gas. Montréal, Quebec H4Z 1M1. www.iata.org.
CurrenteditionapprovedMay1,2017.PublishedJuly2017.Originallyapproved AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
in 1953. Last previous edition approved in 2011 as D1265 – 11. DOI: 10.1520/ 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
D1265-11R17E01. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
D1265−11 (2017)
3.1.2 maximum fill density (reduced fill density), n—the jurisdiction for pressure vessels with adequate pressure rating
volume of a container occupied by the sample. for the product being sampled. Suitable materials include
3.1.2.1 Discussion—Maximum fill density is usually ex- stainless steel, Monel, and possibly other materials. Protective
pressed as a percentage of the total capacity. internal coatings or surface treatments to render the internal
surface inert are acceptable. The size of the container depends
4. Summary of Practice
upon the amount of sample required for the laboratory tests to
4.1 A liquid sample of LPG is transferred from the source
be made. If the container is to be transported, it shall also
into a sample container by purging the container and filling it
conform to specifications published in transportation legisla-
withliquid,thenprovidingaminimum20 %outagebyventing
tion such as U.S. CFR 49 or Canadian Transportation of
liquid, so that 80 % or less of the liquid volume remains.
Dangerous Goods Regulations, and their supplements,
reissues, or similar regulations in other jurisdictions.
5. Significance and Use
NOTE 3—It has been common practice to refer to LPG sample
5.1 Samples of liquefied petroleum gases are examined by
containers as “sample bombs.” Use of this term is discouraged because of
various test methods to determine physical and chemical
obvious misunderstanding by many people. Alternate names such as
characteristics and conformance with specifications.
“pressurized sample container” or “high pressure sample cylinder” are
recommended.
5.2 Equipment described by this practice may be suitable
NOTE 4—DOT 3E cylinders are exempt from requalification in some
for transportation of LPG samples, subject to applicable
jurisdictions.Othercylindersmayneedtoberequalifiedaccordingtolocal
transportation regulations.
regulations.
7.1.1 The sample container should be fitted with an internal
6. General Information
outage (ullage) tube to permit release of a minimum 20 % of
6.1 Considerable effort is required to obtain a representative
the container capacity as a liquid. The end of the container
sample,especiallyifthematerialbeingsampledisamixtureof
fitted with the outage (ullage) tube shall be clearly marked.
liquefied petroleum gases. Consider the following factors:
Typical sample containers are shown in Figs. 1 and 2.
6.1.1 Obtain samples of the liquid phase only.
7.1.2 Sample containers without an internal outage (ullage)
6.1.2 When it is definitely known that the material being
tubes are acceptable. Alternative purging and venting proce-
sampled is composed predominantly of only one liquefied
dures to obtain a minimum 20 % ullage in the container, as
petroleum gas, a liquid sample may be taken from any part of
described in 11.2.1, are required.
the vessel.
7.1.3 Verify the high pressure sample cylinder and associ-
6.1.3 When the material being sampled has been mixed or
ated valving for gas tightness by leak testing at a minimum of
circulated until it is homogeneous, a liquid sample may be
3450 kPa (500 psig) with inert gas prior to first use, whenever
taken from any part of the vessel.
pressure-containing components of the assembly are replaced,
6.1.4 Because of wide variation in the construction details
or otherwise on an annual basis.
of containers for liquefied petroleum gases, it is difficult to
specify a uniform method for obtaining representative samples
7.2 Sample Transfer Line made of stainless steel tubing or
of heterogeneous mixtures. If it is not practicable to homog-
other flexible metal hose, impervious to the product being
enize a mixture to ensure uniformity, obtain liquid samples by
sampled,isrequired.Themostsatisfactorylineisoneequipped
a procedure which has been agreed upon by the contracting
with two valves on the sample-container end, Fig. 1,a
parties.
sampling valve, A, and a vent valve, B.
6.1.5 Directions for sampling cannot be made explicit
PROCEDURE
enough to cover all cases. They must be supplemented by
judgment, skill and sampling experience. Extreme care and
8. Purging Sample Transfer Line
good judgment are necessary to ensure samples which repre-
sent the general character and average condition of the mate-
8.1 Connect the ends of the sample transfer line securely to
rial. Because of the hazards involved, liquefied petroleum
the product source and to Valve C (inlet) (Fig. 1)ofthe
gases should be sampled by, or under the supervision of,
container. Close Valve A (sampling), Valve B (vent), and Valve
persons familiar with the necessary safety precautions.
C (inlet). Open the valve at the product source and purge the
transferlinebyopeningValve A(sampling)andValve B(vent).
NOTE 2—Samples to be tested for presence of corrosive compounds or
sulfur compounds should be taken in inert container
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: D1265 − 11 D1265 − 11 (Reapproved 2017)
Standard Practice for
Sampling Liquefied Petroleum (LP) Gases, Manual Method
This standard is issued under the fixed designation D1265; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
ε NOTE—SI units formatting was corrected editorially in July 2017.
1. Scope*Scope
1.1 This practice covers equipment and procedures for obtaining a representative sample of specification Liquefied Petroleum
Gas (LPG), such as specified in Specification D1835, GPA 2140, and comparable international standards.
1.2 This practice is suitable for obtaining representative samples for all routine tests for LP gases required by Specification
D1835. In the event of a dispute involving sample integrity when sampling for testing against Specification D1835 requirements,
Practice D3700 shall be used as the referee sampling procedure.
1.3 This practice may also be used for other Natural Gas Liquid (NGL) products that are normally single phase (NGL mix, field
butane, etc.), defined in other industry specifications or contractual agreements. It is not intended for non-specification products
that contain significant quantities of undissolved gases (N , CO ), free water or other separated phases, such as raw or unprocessed
2 2
gas/liquids mixtures and related materials. The same equipment can be used for these purposes, but additional precautions are
generally needed to obtain representative samples of multiphase products (see Appendix X1 on Sampling Guidelines in Practice
D3700).
NOTE 1—Practice D3700 describes a recommended practice for obtaining a representative sample of a light hydrocarbon fluid and the subsequent
preparation of that sample for laboratory analysis when dissolved gases are present. Use of Practice D1265 will result in a small but predictable low bias
for dissolved gases due to the liquid venting procedure to establish the 20 % minimum ullage.
1.4 This practice includes recommendations for the location of a sample point in a line or vessel. It is the responsibility of the
user to ensure that the sampling point is located so as to obtain a representative sample.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5.1 Exception—Non-SI units are shown in parentheses for information only.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
D1835 Specification for Liquefied Petroleum (LP) Gases
D3700 Practice for Obtaining LPG Samples Using a Floating Piston Cylinder
2.2 Other Regulations:
Canadian Transportation of Dangerous Goods Regulations
GPA 2140 Gas Processors Association Liquefied Petroleum Gas Specifications & Test Methods
This practice is under the jurisdiction of ASTM Committee D02 on Petroleum Products Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.H0 on Liquefied Petroleum Gas.
Current edition approved Oct. 1, 2011May 1, 2017. Published November 2011July 2017. Originally approved in 1953. Last previous edition approved in 20052011 as
D1265D1265 – 11.–05. DOI: 10.1520/D1265-11.10.1520/D1265-11R17E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from the Canadian General Standards Board, Sales Centre, Gatineau, Canada K1A 1G6, http://www.ongc-cgsb.gc.ca/.
Available from Gas Processors Association (GPA), 6526 E. 60th St., Tulsa, OK 74145, http://www.gpaglobal.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
D1265 − 11 (2017)
IATA Transportation of Dangerous Goods by Air
U.S. CFR 49 Transportation
3. Terminology
3.1 Definitions:
3.1.1 high pressure sample cylinder, n—a container used for storage and transportation of a sample obtained at pressures above
atmospheric pressure.
3.1.2 maximum fill density (reduced fill density), n—the volume of a container occupied by the sample.
Available from IATA Customer Care, 800 Place Victoria, PO Box 113, Montréal, Quebec H4Z 1M1. www.iata.org.
Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.access.gpo.gov.
3.1.2.1 Discussion—
Maximum fill density is usually expressed as a percentage of the total capacity.
4. Summary of Practice
4.1 A liquid sample of LPG is transferred from the source into a sample container by purging the container and filling it with
liquid, then providing a minimum 20 % outage by venting liquid, so that 80 % or less of the liquid volume remains.
5. Significance and Use
5.1 Samples of liquefied petroleum gases are examined by various test methods to determine physical and chemical
characteristics and conformance with specifications.
5.2 Equipment described by this practice may be suitable for transportation of LPG samples, subject to applicable transportation
regulations.
6. General Information
6.1 Considerable effort is required to obtain a representative sample, especially if the material being sampled is a mixture of
liquefied petroleum gases. Consider the following factors:
6.1.1 Obtain samples of the liquid phase only.
6.1.2 When it is definitely known that the material being sampled is composed predominantly of only one liquefied petroleum
gas, a liquid sample may be taken from any part of the vessel.
6.1.3 When the material being sampled has been mixed or circulated until it is homogeneous, a liquid sample may be taken from
any part of the vessel.
6.1.4 Because of wide variation in the construction details of containers for liquefied petroleum gases, it is difficult to specify
a uniform method for obtaining representative samples of heterogeneous mixtures. If it is not practicable to homogenize a mixture
to ensure uniformity, obtain liquid samples by a procedure which has been agreed upon by the contracting parties.
6.1.5 Directions for sampling cannot be made explicit enough to cover all cases. They must be supplemented by judgment, skill
and sampling experience. Extreme care and good judgment are necessary to ensure samples which represent the general character
and average condition of the material. Because of the hazards involved, liquefied petroleum gases should be sampled by, or under
the supervision of, persons familiar with the necessary safety precautions.
NOTE 2—Samples to be tested for presence of corrosive compounds or sulfur compounds should be taken in inert containers equipped with stainless
steel valves; otherwise, determinations of mercaptans and hydrogen sulfide, for example, can be misleading. Internal surfaces of sample containers and
associated lines and fittings may be surface coated to reduce bare metal surfaces reacting with trace reactive components.
6.1.6 Control hydrocarbon vapors vented during sampling to ensure compliance with applicable safety and environmental
regulations.
7. Apparatus
7.1 High Pressure Sample Cylinder—Use corrosion resistant metal sample containers certified by the authority having
jurisdiction for pressure vessels with adequate pressure rating for the product being sampled. Suitable materials include stainless
steel, Monel, and possibly other materials. Protective internal coatings or surface treatments to render the internal surface inert are
acceptable. The size of the container depends upon the amount of sample required for the laboratory tests to be made. If the
container is to be transported, it shall also conform to specifications published in transportation legislation such as U.S. CFR 49
or Canadian Transportation of Dangerous Goods Regulations, and their supplements, reissues, or similar regulations in other
jurisdictions.
NOTE 3—It has been common practice to refer to LPG sample containers as “sample bombs.” Use of this term is discouraged because of obvious
´1
D1265 − 11 (2017)
FIG. 1 Typical Sample Container and Sampling Connections
misunderstanding by many people. Alternate names such as “pressurized sample container” or “high pressure sample cylinder” are recommended.
NOTE 4—DOT 3E cylinders are exempt from requalification in some jurisdictions. Other cylinders may need to be requalified according to local
regulations.
7.1.1 The sample container should be fitted with an internal outage (ullage) tube to permit release of a minimum 20 % of the
container capacity as a liquid. The end of the container fitted with the outage (ullage) tube shall be clearly marked. Typical sample
containers are shown in Figs. 1 and 2.
7.1.2 Sample containers without an internal outage (ullage) tubes are acceptable. Alternative purging and venting procedures
to obtain a minimum 20 % ullage in the container, as described in 11.2.1, are required.
7.1.3 Verify the high pressure sample cylinder and associated valving for gas tightness by leak testing at a minimum of 3450
kPa (500 psig) 3450 kPa (500 psig) with inert gas prior to first use, whenever pressure-containing components of the assembly are
replaced, or oth
...