ASTM D2712-23
(Test Method)Standard Test Method for Determination of Hydrocarbon Impurities in High Purity Propylene by Gas Chromatography
Standard Test Method for Determination of Hydrocarbon Impurities in High Purity Propylene by Gas Chromatography
SIGNIFICANCE AND USE
5.1 High-purity propylene is required as a feedstock for various manufacturing processes, and the presence of trace amounts of certain hydrocarbon impurities may have adverse effects on yield or catalyst life. This test method is suitable for use as a benchmark in setting commercial specifications, for use as an internal quality control tool, and for use in development or research work.
SCOPE
1.1 This test method is used for the determination of hydrocarbon impurities in propylene (propene) material of 97 % by mass or greater purity (concentrates). These impurities are determined in the concentration range of 0.35 mg/kg to 8575 mg/kg and includes the following components: methane, ethane, ethylene, propane, acetylene, isobutane, propadiene, normal butane, trans-2-butene, butene-1, isobutylene, cis-2-butene, isopentane, methylacetylene, normal pentane, and 1,3-butadiene.
Note 1: Optionally, the analysis may include the determination of pentenes/hexanes and heavier components, see 6.3.
1.2 This test method does not determine non-hydrocarbon impurities, and additional tests may be necessary to fully characterize the propylene sample. However, for the purposes of this test, the purity of propylene is determined as the difference between the total of the determined analytes and 100 % (by difference).
1.3 When this test method is being used for the determination of trace level impurities in high-purity propylene, the use of this test method for the analysis of propylene samples at lower purities is not recommended due to the potential for cross contamination between samples.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 This standard may involve hazardous materials, operations, and equipment. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5.1 The user is advised to obtain LPG safety training for the safe operation of this test method procedure and related activities. The eLearning training course “Liquefied Petroleum Gases Sampling Safety” is available on the ASTM.org website.
1.6 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
Relations
Buy Standard
Standards Content (Sample)
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.
Designation: D2712 − 23
Standard Test Method for
Determination of Hydrocarbon Impurities in High Purity
1
Propylene by Gas Chromatography
This standard is issued under the fixed designation D2712; 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.
1. Scope* activities. The eLearning training course “Liquefied Petroleum
Gases Sampling Safety” is available on the ASTM.org website.
1.1 This test method is used for the determination of
1.6 This international standard was developed in accor-
hydrocarbon impurities in propylene (propene) material of
dance with internationally recognized principles on standard-
97 % by mass or greater purity (concentrates). These impurities
ization established in the Decision on Principles for the
are determined in the concentration range of 0.35 mg ⁄kg to
Development of International Standards, Guides and Recom-
8575 mg/kg and includes the following components: methane,
mendations issued by the World Trade Organization Technical
ethane, ethylene, propane, acetylene, isobutane, propadiene,
Barriers to Trade (TBT) Committee.
normal butane, trans-2-butene, butene-1, isobutylene, cis-2-
butene, isopentane, methylacetylene, normal pentane, and
2. Referenced Documents
1,3-butadiene.
2
2.1 ASTM Standards:
NOTE 1—Optionally, the analysis may include the determination of
D1265 Practice for Sampling Liquefied Petroleum (LP)
pentenes/hexanes and heavier components, see 6.3.
Gases, Manual Method
1.2 This test method does not determine non-hydrocarbon
D1835 Specification for Liquefied Petroleum (LP) Gases
impurities, and additional tests may be necessary to fully
D3700 Practice for Obtaining LPG Samples Using a Float-
characterize the propylene sample. However, for the purposes
ing Piston Cylinder
of this test, the purity of propylene is determined as the
E355 Practice for Gas Chromatography Terms and Relation-
difference between the total of the determined analytes and
ships
100 % (by difference).
F307 Practice for Sampling Pressurized Gas for Gas Analy-
1.3 When this test method is being used for the determina-
sis
tion of trace level impurities in high-purity propylene, the use
of this test method for the analysis of propylene samples at 3. Terminology
lower purities is not recommended due to the potential for
3.1 Definitions:
cross contamination between samples.
3.1.1 Additional terminology related to the practice of gas
1.4 The values stated in SI units are to be regarded as chromatography can be found in Practice E355.
standard. No other units of measurement are included in this 3.1.2 liquefied petroleum gas (LPG), n—hydrocarbon gases
standard. that can be stored or handled in the liquid phase through
compression or refrigeration, or both.
1.5 This standard may involve hazardous materials,
3.1.2.1 Discussion—LPG’s generally consist of C and C
3 4
operations, and equipment. This standard does not purport to
alkanes and alkenes or mixtures thereof and containing less
address all of the safety concerns, if any, associated with its
than 10 % by volume of higher carbon number material. Vapor
use. It is the responsibility of the user of this standard to
pressure does not normally exceed 2000 kPa at 40 ºC.
establish appropriate safety, health, and environmental prac-
tices and determine the applicability of regulatory limitations 3.2 Definitions of Terms Specific to This Standard:
prior to use. 3.2.1 propane/propene mixtures, n—mixtures primarily
1.5.1 The user is advised to obtain LPG safety training for composed of propane and propene where one of these compo-
the safe operation of this test method procedure and related nents is usually in the concentration range of 30 % to 85 % by
mass with the other comprising the majority of the remainder.
1
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
2
Subcommittee D02.D0 on Hydrocarbons for Chemical and Special Uses. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 1, 2023. Published March 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1968. Last previous edition approved in 2020 as D2712 – 20. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D2712-23. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyrigh
...
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.
Designation: D2712 − 20 D2712 − 23
Standard Test Method for
Determination of Hydrocarbon Impurities in High Purity
1
Propylene by Gas Chromatography
This standard is issued under the fixed designation D2712; 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.
1. Scope*
1.1 This test method is used for the determination of hydrocarbon impurities in propylene (propene) material of 97 % by mass or
greater purity (concentrates). These impurities are determined in the concentration range of 0.35 mg ⁄kg to 8575 mg/kg and
includes the following components: methane, ethane, ethylene, propane, acetylene, isobutane, propadiene, normal butane,
trans-2-butene, butene-1, isobutylene, cis-2-butene, isopentane, methylacetylene, normal pentane, and 1,3-butadiene.
NOTE 1—Optionally, the analysis may include the determination of pentenes/hexanes and heavier components, see 6.3.
1.2 This test method does not determine non-hydrocarbon impurities, and additional tests may be necessary to fully characterize
the propylene sample. However, for the purposes of this test, the purity of propylene is determined as the difference between the
total of the determined analytes and 100 % (by difference).
1.3 When this test method is being used for the determination of trace level impurities in high-purity propylene, the use of this
test method for the analysis of propylene samples at lower purities is not recommended due to the potential for cross contamination
between samples.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 This standard may involve hazardous materials, operations, and equipment. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This standard may involve hazardous materials, operations, and equipment. 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,
health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5.1 The user is advised to obtain LPG safety training for the safe operation of this test method procedure and related activities.
The eLearning training course “Liquefied Petroleum Gases Sampling Safety” is available on the ASTM.org website.
1.6 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.
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.D0 on Hydrocarbons for Chemical and Special Uses.
Current edition approved July 1, 2020March 1, 2023. Published July 2020March 2023. Originally approved in 1968. Last previous edition approved in 20182020 as D2712
– 18a. DOI: 10.1520/D2712-20.20. DOI: 10.1520/D2712-23.
*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
---------------------- Page: 1 ----------------------
D2712 − 23
2. Referenced Documents
2
2.1 ASTM Standards:
D1265 Practice for Sampling Liquefied Petroleum (LP) Gases, Manual Method
D1835 Specification for Liquefied Petroleum (LP) Gases
D3700 Practice for Obtaining LPG Samples Using a Floating Piston Cylinder
E355 Practice for Gas Chromatography Terms and Relationships
F307 Practice for Sampling Pressurized Gas for Gas Analysis
3. Terminology
3.1 Definitions:
3.1.1 Additional terminology related to the practice of gas chromatography can be found in Practice E355.
3.1.2 liquefied petroleum gas (LPG), n—hydrocarbon gases that can be stored or handled in the liquid phase through compression
or refrigeration, or both.
3.1.2.1 Discussion—
LPG’s generally cons
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.