1. Scope

1.1 This test method covers the determination of hydrocarbon types over the concentration ranges from 5 to 99 volume % aromatics, 0.3 to 55 volume % olefins, and 1 to 95 volume % saturates in petroleum fractions that distill below 315C. This test method may apply to concentrations outside these ranges, but the precision has not been determined. Samples containing dark-colored components that interfere in reading the chromatographic bands cannot be analyzed.

1.2 This test method is intended for use with full boiling range products. Cooperative data have established that the precision statement does not apply to narrow boiling petroleum fractions near the 315C limit. Such samples are not eluted properly, and results are erratic.

1.3 The applicability of this test method to products derived from fossil fuels other than petroleum, such as coal, shale, or tar sands, has not been determined, and the precision statement may or may not apply to such products.

1.4 This test method has two precision statements depicted in tables. The first table is applicable to unleaded fuels that do not contain oxygenated blending components. It may or may not apply to automotive gasolines containing lead antiknock mixtures. The second table is applicable to oxygenate blended (for example, MTBE, ethanol) automotive spark ignition fuel samples with a concentration range of 13-40 volume percent aromatics, 4-33 volume percent olefins, and 45-68 volume percent saturates.

1.5 The oxygenated blending components, methanol, ethanol, methyl- tert -butylether (MTBE), tert -amylmethylether (TAME), and ethyl- tert -butylether (ETBE), do not interfere with the determination of hydrocarbon types at concentrations normally found in commercial blends. These oxygenated components are not detected since they elute with the alcohol desorbent. Other oxygenated compounds shall be individually verified. When samples containing oxygenated blending components are analyzed, correct the results to a total-sample basis.

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

Note 1For the determination of olefins below 0.3 volume %, other test methods are available, such as Test Method D 2710.

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. For specific hazard statements, see Section 7, 8, 1and 10.5.

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

D86 Test Method for Distillation of Petroleum Products at Atmospheric Pressure

D1655 Specification for Aviation Turbine Fuels

D2710 Test Method for Bromine Index of Petroleum Hydrocarbons by Electrometric Titration

D3663 Test Method for Surface Area of Catalysts and Catalyst Carriers

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

D5599 Test Method for Determination of Oxygenates in Gasoline by Gas Chromatography and Oxygen Selective Flame Ionization Detection

E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves

Keywords

aromatics; fluorescent indicator adsorption (FIA); hydrocarbon types; olefins; saturates;

ICS Code

ICS Number Code 75.080 (Petroleum products in general)

DOI: 10.1520/D1319-03E01

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