ASTM D7796-21
Standard Test Method for Analysis of Ethyl tert-Butyl Ether (ETBE) by Gas Chromatography

Standard No.

ASTM D7796-21

Release Date

2021

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D7796-21

Scope

1.1 This test method covers the determination of the purity of ethyl tert-butyl ether (ETBE) by gas chromatography. It also provides a procedure to measure impurities in ETBE such as C4 to C12 olefins, methyl, isopropyl and tert-butyl alcohols, methyl sec-butyl and methyl tert-amyl ethers, acetone, and methyl ethyl ketone. 1.2 This test method is not applicable to the determination of ETBE in gasoline. 1.3 Water cannot be determined by this test method and shall be measured by a procedure such as Test Method D6304 and the result used to normalize the chromatographic values. 1.4 Most of the impurities in ETBE are resolved by the test method, however, some co-elution is encountered. 1.5 This test method is inappropriate for impurities that boil at temperatures higher than 180 °C or for impurities that cause poor or no response in a flame ionization detector, such as water. 1.6 The values stated in SI units of measurement are preferred and used throughout the standard. Alternate units, in common usage, are also provided to improve clarity and aid the user of this test method. 1.7 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. 1.8 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.

ASTM D7796-21 Referenced Document

• ASTM D3700 Standard Practice for Obtaining LPG Samples Using a Floating Piston Cylinder
• ASTM D4057 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
• ASTM D4175 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants*， 2023-07-01 Update
• ASTM D4307 Standard Practice for Preparation of Liquid Blends for Use as Analytical Standards
• ASTM D4626 Standard Practice for Calculation of Gas Chromatographic Response Factors
• ASTM D6304 Standard Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration
• ASTM D7618 Standard Specification for Ethyl Tertiary-Butyl Ether (ETBE) for Blending with Aviation Spark-Ignition Engine Fuel
• ASTM E355 Standard Practice for Gas Chromatography Terms and Relationships*， 2024-04-21 Update
• ASTM E594 Standard Practice for Testing Flame Ionization Detectors Used in Gas or Supercritical Fluid Chromatography

ASTM D7796-21 history

• 2021 ASTM D7796-21 Standard Test Method for Analysis of Ethyl tert-Butyl Ether (ETBE) by Gas Chromatography
• 2017 ASTM D7796-17 Standard Test Method for Analysis of Ethyl tert-Butyl Ether (ETBE) by Gas Chromatography
• 2012 ASTM D7796-12 Standard Test Method for Analysis of Ethyl tert-Butyl Ether (ETBE) by Gas Chromatography