ASTM D1267-18

Standard Test Method for Gauge Vapor Pressure of Liquefied Petroleum (LP) Gases (LP-Gas Method)

SIGNIFICANCE AND USE
5.1 Information on the vapor pressures of liquefied petroleum gas products under temperature conditions from 37.8 °C to 70 °C (100 °F to 158 °F) is pertinent to selection of properly designed storage vessels, shipping containers, and customer utilization equipment to ensure safe handling of these products.  
5.2 Determination of the vapor pressure of liquefied petroleum gas is important for safety reasons to ensure that the maximum operating design pressures of storage, handling, and fuel systems will not be exceeded under normal operating temperature conditions.  
5.3 For liquefied petroleum gases, vapor pressure can be considered a semi-quantitative measure of the amount of the most volatile material present in the product, and this can give an indication of low temperature operability.
SCOPE
1.1 This test method covers the determination of the gauge vapor pressures of liquefied petroleum gas products at temperatures of 37.8 °C (100 °F) up to and including a test temperature of 70 °C (158 °F). (Warning—Extremely flammable gas. May be harmful when inhaled.)
Note 1: An alternative method for measurement of vapor pressure of liquefied petroleum gases is Test Method D6897.  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.3 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. For specific warning statements, see 1.1 and Annex A2.  
1.4 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-Jun-2018
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation: D1267 − 18
Standard Test Method for
Gauge Vapor Pressure of Liquefied Petroleum (LP) Gases
1
(LP-Gas Method)
This standard is issued under the fixed designation D1267; 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* 3. Terminology
1.1 This test method covers the determination of the gauge 3.1 Definitions:
vapor pressures of liquefied petroleum gas products at tem- 3.1.1 liquefied petroleum gas (LP gas, LPG), n—a nar-
peratures of 37.8 °C (100 °F) up to and including a test row boiling range mixture of hydrocarbons consisting of
temperature of 70 °C (158 °F). (Warning—Extremely flam- propane, propylene, butanes, and butylenes, individually or in
mable gas. May be harmful when inhaled.) specified combinations, with limited amounts of other hydro-
carbons (such as ethane) and naturally occurring, petroleum-
NOTE 1—An alternative method for measurement of vapor pressure of
derived non-hydrocarbons.
liquefied petroleum gases is Test Method D6897.
3.1.2 vapor pressure, n—the pressure exerted by the vapor
1.2 The values stated in SI units are to be regarded as
of a liquid when in equilibrium with the liquid.
standard. The values given in parentheses after SI units are
provided for information only and are not considered standard.
4. Summary of Test Method
1.3 This standard does not purport to address all of the
4.1 The test apparatus, consisting of two interconnected
safety concerns, if any, associated with its use. It is the
chambers and equipped with a suitable pressure gauge, is
responsibility of the user of this standard to establish appro-
purged with a portion of the sample which is then discarded.
priate safety, health, and environmental practices and deter-
The apparatus is then filled completely with the portion of the
mine the applicability of regulatory limitations prior to use.
sample to be tested. Thirty-three and one-third to forty volume
For specific warning statements, see 1.1 and Annex A2.
percent of the sample content of the apparatus is immediately
1.4 This international standard was developed in accor-
withdrawn to provide adequate free space for product expan-
dance with internationally recognized principles on standard-
sion. The apparatus is then immersed in a water bath main-
ization established in the Decision on Principles for the
tained at the standard test temperature of 37.8 °C (100 °F) or,
Development of International Standards, Guides and Recom-
optionally, at some higher test temperature up to and including
mendations issued by the World Trade Organization Technical
a test temperature of 70 °C (158 °F).
Barriers to Trade (TBT) Committee.
4.2 The observed gauge pressure at equilibrium, after cor-
2. Referenced Documents
recting for gauge error and correcting to a standard barometric
2
pressure, is reported as the LPG Vapor Pressure at the selected
2.1 ASTM Standards:
test temperature.
D323 Test Method for Vapor Pressure of Petroleum Products
(Reid Method)
5. Significance and Use
D1265 Practice for Sampling Liquefied Petroleum (LP)
5.1 Information on the vapor pressures of liquefied petro-
Gases, Manual Method
D6897 Test Method for Vapor Pressure of Liquefied Petro- leum gas products under temperature conditions from 37.8 °C
to 70 °C (100 °F to 158 °F) is pertinent to selection of properly
leum Gases (LPG) (Expansion Method)
designed storage vessels, shipping containers, and customer
utilization equipment to ensure safe handling of these products.
1
This test method is under the jurisdiction of ASTM Committee D02 on
5.2 Determination of the vapor pressure of liquefied petro-
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.H0 on Liquefied Petroleum Gas.
leum gas is important for safety reasons to ensure that the
Current edition approved July 1, 2018. Published August 2018. Originally
maximum operating design pressures of storage, handling, and
approved in 1953. Last previous edition approved in 2012 as D1267 – 12. DOI:
fuel systems will not be exceeded under normal operating
10.1520/D1267-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or temperature conditions.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.3 For liquefied petroleum gases, vapor pressure can be
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. considered a semi-quantitative measure of the amount of the
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C7
...

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: D1267 − 12 D1267 − 18
Standard Test Method for
GageGauge Vapor Pressure of Liquefied Petroleum (LP)
1
Gases (LP-Gas Method)
This standard is issued under the fixed designation D1267; 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 covers the determination of the gagegauge vapor pressures of liquefied petroleum gas products
(Warning—Flammable gas. Harmful when inhaled.) at temperatures of 37.8°C (100°F)37.8 °C (100 °F) up to and including a test
temperature of 70°C (158°F).70 °C (158 °F). (Warning—Extremely flammable gas. May be harmful when inhaled.)
NOTE 1—An alternative method for measurement of vapor pressure of liquefied petroleum gases is Test Method D6897.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.after
SI units are provided for information only and are not considered standard.
1.3 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. For specific warning statements, see 1.1 and Annex A2.
1.4 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
2.1 ASTM Standards:
D323 Test Method for Vapor Pressure of Petroleum Products (Reid Method)
D1265 Practice for Sampling Liquefied Petroleum (LP) Gases, Manual Method
D6897 Test Method for Vapor Pressure of Liquefied Petroleum Gases (LPG) (Expansion Method)
3. Terminology
3.1 Definitions:
3.1.1 liquefied petroleum gases, gas (LP gas, LPG), n—a narrow boiling range hydrocarbon mixtures consisting mainly of
propane or propylene, or both, and butanes or butylenes, or both, plusmixture of hydrocarbons consisting of propane, propylene,
butanes, and butylenes, individually or in specified combinations, with limited amounts of other hydrocarbons (such as ethane) and
naturally occurring occurring, petroleum-derived non-hydrocarbons.
3.1.2 vapor pressure, n—the pressure exerted by the vapor of a liquid when in equilibrium with the liquid.
4. Summary of Test Method
4.1 The test apparatus, consisting of two interconnected chambers and equipped with a suitable pressure gage,gauge, is purged
with a portion of the sample which is then discarded. The apparatus is then filled completely with the portion of the sample to be
tested. Thirty-three and one-third to forty volume percent of the sample content of the apparatus is immediately withdrawn to
provide adequate free space for product expansion. The apparatus is then immersed in a water bath maintained at the standard test
temperature of 37.8°C (100°F)37.8 °C (100 °F) or, optionally, at some higher test temperature up to and including a test
temperature of 70°C (158°F).70 °C (158 °F).
1
This test method 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 Nov. 1, 2012July 1, 2018. Published February 2013August 2018. Originally approved in 1953. Last previous edition approved in 20072012 as
D1267–02(2007).D1267 – 12. DOI: 10.1520/D1267-12.10.1520/D1267-18.
2
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.
*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

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D1267 − 18
4.2 The observed gagegauge pressure at equilibrium, after correcting for gagegauge error and correcting to a standard
barometric pressure, is reported as the LPG Vapor Pressure at the sele
...