1. Scope

1.1 These test methods cover the quantitative determination of total oxygen in gasoline and methanol fuels by reductive pyrolysis.

1.2 Precision data are provided for 1.0 to 5.0 mass % oxygen in gasoline and for 40 to 50 mass % oxygen in methanol fuels.

1.3 Several types of instruments can be satisfactory for these test methods. Instruments can differ in the way that the oxygen-containing species is detected and quantitated. However, these test methods are similar in that the fuel is pyrolyzed in a carbon-rich environment.

1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D1298 Test Method for Density, Relative Density (Specific Gravity), or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method

D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter

D4057 Practice for Manual Sampling of Petroleum and Petroleum Products

D4815 Test Method for Determination of MTBE, ETBE, TAME, DIPE, tertiary-Amyl Alcohol and C1 to C4 Alcohols in Gasoline by Gas Chromatography

Other Standards

Keywords

carbon dioxide; carbon monoxide; di-isopropyl ether; ethanol; ethyl tert-butyl ether; isobutanol; isopropanol; methanol; methyl tert-butyl ether; n-butanol; n-propanol; oxygen; reductive pyrolysis; sec-butanol; tert-butanol; tert-amyl methyl ether; Pyrolysis; Reductive pyrolysis; TAME ( tert -amyl methylether); Total oxygen; Automotive engine fuels/oils; Butanol ( sec/tert/n ); Carbon dioxide; Carbon monoxide (CO); Di-isopropyl ether; ETBE (ethyl tert -butyl ether); Ethanol; Helium-argon//He-H carrier gas; Helium carrier gas; Isobutanol; Isopropanol; Methanol (methyl alcohol); MTBE (methyl tert -butylether); Nitrogen carrier gas; Oxygen; Oxygen-containing compounds; n -Propanol ;

ICS Code

ICS Number Code 75.160.20 (Liquid fuels)

DOI: 10.1520/D5622-95R05

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