Standard Practice for Calculation of Certain Physical Properties of Liquefied Petroleum (LP) Gases from Compositional Analysis

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Published date

06-05-2021

Publisher

American Society for Testing and Materials

Committee	D 02
DocumentType	Redline
Pages	6
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM D 2598 : 2016 : REDLINE

1.1This practice covers, by compositional analysis, the approximate determination of the following physical characteristics of commercial propane, special-duty propane, commercial propane/butane mixtures, and commercial butane (covered by Specification D1835): vapor pressure, relative density, and motor octane number (MON).

1.1.1This practice is not applicable to any product exceeding specifications for nonvolatile residues. (See Test Method D2158.)

1.1.2For calculating motor octane number, this practice is applicable only to mixtures containing 20 % or less of propene.

1.1.3For calculated motor octane number, this practice is based on mixtures containing only components shown in Table 1.

1.2The values stated in SI units are to be regarded as standard.

1.2.1Exceptions:

1.2.1.1Non-SI units in parentheses are given for information only.

1.2.1.2Motor octane number and relative density are given in MON numbers and dimensionless units, respectively.

1.3This 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.

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ASTM D 2598 : 2021 : REDLINE

Standard Practice for Calculation of Certain Physical Properties of Liquefied Petroleum (LP) Gases from Compositional Analysis

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