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ASTM D4423-23

Current Revision

Standard Test Method for Determination of Carbonyls in C<inf>4</inf> Hydrocarbons

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1.1 This test method covers the determination of carbonyls (ketones and aldehydes) in C4 hydrocarbons. This test method was tested on polymerization-grade 1,3-butadiene.

1.2 The applicable range for this test method is 0 mg/kg to 50 mg/kg carbonyls calculated as acetaldehyde.

1.3 Other C4 hydrocarbons and their mixtures besides polymerization-grade 1,3-butadiene could be tested using this same test method. However, the precision section of this test method covers only carbonyls in applicable range as listed in 1.2, as found in polymerization-grade 1,3-butadiene.

1.4 WARNING—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determine legality of sales in their location.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6.1 The user is advised to obtain LPG safety training for the safe operation of this test method procedure and related activities.

1.7 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.


4.1 The determination of the carbonyl content of polymerization-grade 1,3-butadiene is necessary, since in some polymerization reactions, the presence of carbonyls in excess over some specified amount can have a deleterious effect upon the polymer properties or the reaction itself, or both.

SDO ASTM: ASTM International
Document Number D4423
Publication Date March 1, 2023
Language en - English
Page Count 4
Revision Level 23
Supercedes
Committee D02.D0.04
Publish Date Document Id Type View
March 1, 2023 D4423-23 Revision
May 1, 2010 D4423-10 Revision
Dec. 10, 2000 D4423-00 Revision
April 1, 2015 D4423-10R15 Reaffirmation
July 1, 2006 D4423-00R06 Reaffirmation
Dec. 10, 2000 D4423-91R96 Reaffirmation