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  • ASTM
    D6550-15 Standard Test Method for Determination of Olefin Content of Gasolines by Supercritical-Fluid Chromatography
    Edition: 2015
    $93.60
    Unlimited Users per year

Description of ASTM-D6550 2015

ASTM D6550-15

Historical Standard: Standard Test Method for Determination of Olefin Content of Gasolines by Supercritical-Fluid Chromatography




ASTM D6550

Scope

1.1 This test method covers the determination of the total amount of olefins in blended motor gasolines and gasoline blending stocks by supercritical-fluid chromatography (SFC). Results are expressed in terms of mass % olefins. The application range is from 1 mass % to 25 mass % total olefins.

1.2 This test method can be used for analysis of commercial gasolines, including those containing varying levels of oxygenates, such as methyl tert/butyl ether (MTBE), diisopropyl ether (DIPE), methyl tert/amyl ether (TAME), and ethanol, without interference.

Note 1: This test method has not been designed for the determination of the total amounts of saturates, aromatics, and oxygenates.

1.3 This test method includes a relative bias section based on Practice D6708 accuracy assessment between Test Method D6550 and Test Method D1319 for total olefins in spark-ignition engine fuels as a possible Test Method D6550 alternative to Test Method D1319 for U.S. EPA regulations reporting. The Practice D6708 derived correlation equation is only applicable for fuels in the concentration range from 0.2 % to 26.2 % by mass as reported by Test Method D6550. The applicable Test Method D1319 concentration range for total olefins is 0.2 % to 27.7 % by volume as reported by Test Method D1319.

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

1.5 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

motor gasolines; olefins; supercritical-fluid chromatography; unsaturated hydrocarbons;


ICS Code

ICS Number Code 27.060.10 (Liquid and solid fuel burners)


DOI: 10.1520/D6550-15

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ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.

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