ASTM International - ASTM D2268-21
Standard Test Method for Analysis of High-Purity n -Heptane and Iso octane by Capillary Gas Chromatography
|Publication Date:||1 December 2021|
|ICS Code (Aliphatic hydrocarbons):||71.080.10|
significance And Use:
5.1 This test method is used for specification analysis of high-purity n-heptane and isooctane, which are used as ASTM Knock Test Reference Fuels. Hydrocarbon impurities or... View More
5.1 This test method is used for specification analysis of high-purity n-heptane and isooctane, which are used as ASTM Knock Test Reference Fuels. Hydrocarbon impurities or contaminants, which can adversely affect the octane number of these fuels, are precisely determined by this method.View Less
1.1 This test method covers and provides for the analysis of high-purity (greater than 99.5 % by volume) n-heptane and isooctane (2,2,4-trimethylpent
1.2 The values stated in SI units are to be regarded as the standard.
1.2.1 Exception-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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.