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ASTM D6296-98(2017)

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ASTM D6296-98(2017) Standard Test Method for Total Olefins in Spark-ignition Engine Fuels by Multidimensional Gas Chromatography

standard by ASTM International, 10/01/2017

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1.1This test method provides for the quantitative determination of total olefins in the C4 to C10 range in spark-ignition engine fuels or related hydrocarbon streams, such as naphthas and cracked naphthas. Olefin concentrations in the range from 0.2liquid-volume % or mass % to 5.0liquid-volume % or mass %, or both, can be determined directly on the as-received sample whereas olefins in samples containing higher concentrations are determined after appropriate sample dilution prior to analysis.

1.2This test method is applicable to samples containing alcohols and ethers; however, samples containing greater than 15% alcohol must be diluted. Samples containing greater than 5.0% ether must also be diluted to the 5.0% or less level, prior to analysis. When ethyl-tert-butylether is present, only olefins in the C4 to C9 range can be determined.

1.3This test method can not be used to determine individual olefin components.

1.4This test method can not be used to determine olefins having higher carbon numbers than C10.

Note 1:Precision was determined only on samples containing MTBE and ethanol.

1.5The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6This 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.

1.7This 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.

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Published: 10/01/2017 Number of Pages: 8File Size: 1 file , 200 KB