ASTM D1837-11
(Test Method)Standard Test Method for Volatility of Liquefied Petroleum (LP) Gases
Standard Test Method for Volatility of Liquefied Petroleum (LP) Gases
SIGNIFICANCE AND USE
Volatility, expressed in terms of the 95 % evaporated temperature of the product, is a measure of the amount of least volatile components present in the product. Coupled with a vapor pressure limit, it serves to ensure essentially single-component products in the cases of commercial grades of propane and butane. When volatility is coupled with a vapor pressure limit which has been related to density, as in the case of the commercial PB-mixture, the combination serves to assure essentially two component mixtures for such fuels. When coupled with a proper vapor pressure limit, this measurement serves to assure that special-duty propane products will be composed chiefly of propane and propylene and that propane will be the major constituent.
SCOPE
1.1 This test method is a measure of the relative purity of the various types of liquefied petroleum (LP) gases and helps to ensure suitable volatility performance. The test results, when properly related to vapor pressure and density of the product, can be used to indicate the presence of butane and heavier components in propane type LP-gas, and pentane and heavier components in propane-butane and butane type fuels. The presence of hydrocarbon compounds less volatile than those of which the LP-gas is primarily composed is indicated by an increase in the 95 % evaporated temperature.
1.2 When the type and concentration of higher boiling components is required, chromatographic analysis should be used.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 WARNINGMercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPA’s websitehttp://www.epa.gov/mercury/faq.htmfor additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law.
1.5 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.
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Designation:D1837 −11
Standard Test Method for
1
Volatility of Liquefied Petroleum (LP) Gases
This standard is issued under the fixed designation D1837; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This test method is a measure of the relative purity of
D96Test Method for Water and Sediment in Crude Oil by
the various types of liquefied petroleum (LP) gases and helps
3
Centrifuge Method (Field Procedure) (Withdrawn 2000)
toensuresuitablevolatilityperformance.Thetestresults,when
D1796Test Method for Water and Sediment in Fuel Oils by
properly related to vapor pressure and density of the product,
the Centrifuge Method (Laboratory Procedure)
can be used to indicate the presence of butane and heavier
E1Specification for ASTM Liquid-in-Glass Thermometers
components in propane type LP-gas, and pentane and heavier
components in propane-butane and butane type fuels. The
3. Summary of Test Method
presenceofhydrocarboncompoundslessvolatilethanthoseof
3.1 Refrigerate the sample by means of a cooling coil and
which the LP-gas is primarily composed is indicated by an
collect 100 mL of liquid in a weathering tube. Allow to
increase in the 95% evaporated temperature.
evaporate (“weather”) at ambient pressure under specified
conditions that approximate a single plate distillation. Correct
1.2 When the type and concentration of higher boiling
the observed temperature, when 5 mL of liquid test portion
components is required, chromatographic analysis should be
remains, for barometric pressure and thermometer ice point
used.
error, and report as the 95% evaporation temperature.
1.3 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information 4. Significance and Use
only.
4.1 Volatility, expressed in terms of the 95% evaporated
temperature of the product, is a measure of the amount of least
1.4 WARNING—Mercury has been designated by many
volatile components present in the product. Coupled with a
regulatory agencies as a hazardous material that can cause
vapor pressure limit, it serves to ensure essentially single-
central nervous system, kidney and liver damage. Mercury, or
component products in the cases of commercial grades of
its vapor, may be hazardous to health and corrosive to
propane and butane. When volatility is coupled with a vapor
materials.Cautionshouldbetakenwhenhandlingmercuryand
pressure limit which has been related to density, as in the case
mercury containing products. See the applicable product Ma-
of the commercial PB-mixture, the combination serves to
terial Safety Data Sheet (MSDS) for details and EPA’s
assure essentially two component mixtures for such fuels.
website—http://www.epa.gov/mercury/faq.htm—for addi-
When coupled with a proper vapor pressure limit, this mea-
tional information. Users should be aware that selling mercury
surement serves to assure that special-duty propane products
and/or mercury containing products into your state or country
will be composed chiefly of propane and propylene and that
may be prohibited by law.
propane will be the major constituent.
1.5 This standard does not purport to address all of the
5. Apparatus
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 5.1 Weathering Tube—Acentrifuge tube, cone-shaped, con-
forming to the dimensions given in Fig. 1 and made of
priate safety and health practices and determine the applica-
4
thoroughly annealed heat-resistant glass. The shape of the
bility of regulatory limitations prior to use.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This test method is under the jurisdiction of ASTM Committee D02 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee Standards volume information, refer to the standard’s Document Summary page on
D02.H0 on Liquefied Petroleum Gas. the ASTM website.
3
Current edition approved Oct. 1, 2011. Published November 2011. Originally The last approved version of this historical standard is referenced on
approved in 1961. Last previous edition approved in 2007 as D1837–02a(2007). www.astm.org.
4
DOI: 10.1520/D1837-11. Borosilicate glass has been found satisfactory for this purpose.
*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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This document is not anASTM standard and is intended only to provide the user of anASTM 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:D1837–02a (Reapproved 2007) Designation: D1837 – 11
Standard Test Method for
1
Volatility of Liquefied Petroleum (LP) Gases
This standard is issued under the fixed designation D1837; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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 Thistestmethodisameasureoftherelativepurityofthevarioustypesofliquefiedpetroleum(LP)gasesandhelpstoensure
suitable volatility performance. The test results, when properly related to vapor pressure and density of the product, can be used
to indicate the presence of butane and heavier components in propane type LP-gas, and pentane and heavier components in
propane-butane and butane type fuels. The presence of hydrocarbon compounds less volatile than those of which the LP-gas is
primarily composed is indicated by an increase in the 95% evaporated temperature.
1.2 When the type and concentration of higher boiling components is required, chromatographic analysis should be used.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4
1.4 WARNING—Mercury has been designated by many regulatory agencies as a hazardous material that can cause central
nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution
should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet
(MSDS) for details and EPA’s website—http://www.epa.gov/mercury/faq.htm—for additional information. Users should be aware
that selling mercury and/or mercury containing products into your state or country may be prohibited by law.
1.5 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D96 Test MethodsMethod for Water and Sediment in Crude Oil by Centrifuge Method (Field Procedure)
D1796 Test Method for Water and Sediment in Fuel Oils by the Centrifuge Method (Laboratory Procedure)
E1 Specification for ASTM Liquid-in-Glass Thermometers
3. Summary of Test Method
3.1 Refrigerate the sample by means of a cooling coil and collect 100 mL of liquid in a weathering tube. Allow to evaporate
(“weather”) at ambient pressure under specified conditions that approximate a single plate distillation. Correct the observed
temperature, when 5 mLof liquid test portion remains, for barometric pressure and thermometer ice point error, and report as the
95% evaporation temperature.
4. Significance and Use
4.1 Volatility,expressedintermsofthe95%evaporatedtemperatureoftheproduct,isameasureoftheamountofleastvolatile
components present in the product. Coupled with a vapor pressure limit, it serves to ensure essentially single-component products
in the cases of commercial grades of propane and butane. When volatility is coupled with a vapor pressure limit which has been
related to density, as in the case of the commercial PB-mixture, the combination serves to assure essentially two component
mixtures for such fuels. When coupled with a proper vapor pressure limit, this measurement serves to assure that special-duty
propane products will be composed chiefly of propane and propylene and that propane will be the major constituent.
5. Apparatus
5.1 Weathering Tube—Acentrifuge tube, cone-shaped, conforming to the dimensions given in Fig. 1 and made of thoroughly
1
This test method is under the jurisdiction ofASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.H0 on
Liquefied Petroleum Gas.
Current edition approved MayOct. 1, 2007.2011. Published June 2007.November 2011. Originally approved in 1961. Last previous edition approved in 20022007 as
D1837–02a(2007). DOI: 10.1520/D1837-02AR07.10.1520/D1837-11.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.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
...
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