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ASTM D2268-93(1998)
Standard Test Method for Analysis of High-Purity n-Heptane and Isooctane by Capillary Gas Chromatography
STANDARD published on 10.7.1998
The information about the standard:
Designation standards: ASTM D2268-93(1998)
Note: WITHDRAWN
Publication date standards: 10.7.1998
SKU: NS-19848
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM D2268-93(1998) :
Keywords:
ASTM knock tesyt reference fuels, capillary column, gas chromatography, isooctane, n-Heptane, ICS Number Code 71.080.10 (Aliphatic hydrocarbons)
Additional information
| 1. 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 problems, 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 precautionary statements see notes 1-3. |
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