ASTM D2598-16

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

ASTM International , 10/01/2016

Publisher: ASTM

File Format: PDF

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Description

Standard By:ASTM International , 10/01/2016

Published:10/01/2016

Pages:3

File Size:1 file , 72 KB

Language:English

Note:This product is unavailable in Russia, Ukraine, Belarus

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.

(A)Some constants for vapor pressure and motor octanes are empirical values to be used only in the calculation procedures described in this practice. References are located in Appendix X1.

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.