1. Scope
1.1 This practice covers, by compositional analysis, the approximate determination of the following physical characteristics of commercial propane and special-duty propane (covered by Specification D 1835): vapor pressure, relative density, and motor octane number (MON).
1.2 This practice is not applicable to any product exceeding specifications for nonvolatile residues. (See Test Method D 2158.)
1.3 For calculating motor octane number, this practice is applicable only to mixtures containing 20 % or less of propene.
1.4 For calculated motor octane number in method, this practice is based on mixtures containing only components shown in Table 1.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D1267 Test Method for Gage Vapor Pressure of Liquefied Petroleum (LP) Gases (LP-Gas Method)
D1657 Test Method for Density or Relative Density of Light Hydrocarbons by Pressure Hydrometer
D1835 Specification for Liquefied Petroleum (LP) Gases
D2158 Test Method for Residues in Liquefied Petroleum (LP) Gases
D2163 Test Method for Analysis of Liquefied Petroleum (LP) Gases and Propene Concentrates by Gas Chromatography
D2421 Practice for Interconversion of Analysis of C5 and Lighter Hydrocarbons to Gas-Volume, Liquid-Volume, or Mass Basis
Keywords
liquefied petroleum gases; motor octane; relative density; vapor pressure;
ICS Code
ICS Number Code 75.160.30 (Gaseous fuels)
DOI: 10.1520/D2598-02R07
ASTM International is a member of CrossRef.
Citing ASTM Standards
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