ASTM-D2268 2003

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D2268-93(2003)e1 Standard Test Method for Analysis of High-Purity n-Heptane and Isooctane by Capillary Gas Chromatography

Published By	Publication Date	Number of Pages
ASTM	2003	4

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Description

ASTM D2268-93-e1-Reapproved2003

Historical Standard: Standard Test Method for Analysis of High-Purity n-Heptane and Isooctane by Capillary Gas Chromatography

ASTM D2268

Scope

1.1 This test method provides for the analysis of high-purity (greater than 99.5 % by volume) n-heptane and isooctane (2,2,4-trimethylpentane), which are used as primary reference standards in determining the octane number of a fuel. Individual compounds present in concentrations of less than 0.01 % can be detected. Columns specified by this test method may not allow separation of all impurities in reference fuels.

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

1.3 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.

Keywords

ASTM knock test reference fuels; capillary column; gas chromatography; isooctane; n-heptane

ICS Code

ICS Number Code n/a

DOI: 10.1520/D2268-93R03E01

PDF Catalog

PDF Pages	PDF Title
1	Scope Summary of Test Method Significance and Use Apparatus Reagents and Materials
2	Preparation of Resolving Column Sample Preparation Procedure Calculation FIG. 1
3	Precision and Bias FIG. 2 TABLE 1 TABLE 2
4	Keywords TABLE 3

Additional information

Standard Title	D2268-93(2003)e1 Standard Test Method for Analysis of High-Purity <i>n</i>-Heptane and <i>Iso</i>octane by Capillary Gas Chromatography
Published Code	ASTM
Publication Date	2003
Pages Count	4