ASTM D6296-98(2008)
Standard Test Method for Total Olefins in Spark-ignition Engine Fuels by Multidimensional Gas Chromatography

Standard No.

ASTM D6296-98(2008)

Release Date

1998

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D6296-98(2013)

Latest

ASTM D6296-22

Scope

The quantitative determination of olefins in spark-ignition engine fuels is required to comply with government regulations.

Knowledge of the total olefin content provides a means to monitor the efficiency of catalytic cracking processes.

This test method provides better precision for olefin content than Test Method D 1319. It also provides data in a much shorter time, approximately 20 min following calibration, and maximizes automation to reduce operator labor.

This test method is not applicable to M85 or E85 fuels, which contain 85 % methanol and ethanol, respectively.

1.1 This 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 0.2 to 5.0 liquid-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.

1.2 This 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.

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

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

Note 18212;Precision was determined only on samples containing MTBE and ethanol.

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

1.6 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.

ASTM D6296-98(2008) Referenced Document

• ASTM D1319 Standard Test Method for Hydrocarbon Types in Liquid Petroleum Products by Fluorescent Indicator Adsorption*， 1999-04-19 Update
• ASTM D4052 Standard Test Method for Density and Relative Density of Liquids by Digital Density Meter
• ASTM D4307 Standard Practice for Preparation of Liquid Blends for Use as Analytical Standards*， 1999-04-19 Update
• ASTM D4815 Standard Test Method for Determination of MTBE, ETBE, TAME, DIPE, tertiary-Amyl Alcohol and C₁ to C₄ Alcohols in Gasoline by Gas Chromatography*， 1999-04-19 Update
• ASTM D5599 Standard Test Method for Determination of Oxygenates in Gasoline by Gas Chromatography and Oxygen Selective Flame Ionization Detection*， 2022-04-01 Update

ASTM D6296-98(2008) history

• 2022 ASTM D6296-22 Standard Test Method for Total Olefins in Spark-ignition Engine Fuels by Multidimensional Gas Chromatography
• 1998 ASTM D6296-98(2017) Standard Test Method for Total Olefins in Spark-ignition Engine Fuels by Multidimensional Gas Chromatography
• 1998 ASTM D6296-98(2013) Standard Test Method for Total Olefins in Spark-ignition Engine Fuels by Multidimensional Gas Chromatography
• 1998 ASTM D6296-98(2008) Standard Test Method for Total Olefins in Spark-ignition Engine Fuels by Multidimensional Gas Chromatography
• 1998 ASTM D6296-98(2003)e1 Standard Test Method for Total Olefins in Spark-Ignition Engine Fuels by Multi-dimensional Gas Chromatography
• 1998 ASTM D6296-98 Standard Test Method for Total Olefins in Spark-Ignition Engine Fuels by Multi-dimensional Gas Chromatography