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ASTM D6814-24

Current Revision

Standard Test Method for Determination of Percent Devulcanization of Crumb Rubber Based on Crosslink Density

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1.1 This test method covers the procedure for determining percent devulcanization from crosslink density measurements of devulcanized rubber and control crumb rubber in the laboratory. Percent devulcanization is a quantitative determination.

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

1.3 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.

1.4 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.


5.1 It is important for rubber compounders to know the extent of devulcanization a rubber might have undergone during recycling. It allows the compounder to determine if more curing agents are needed during mixing of devulcanized rubber when used either as partial replacement or stand alone.

SDO ASTM: ASTM International
Document Number D6814
Publication Date May 1, 2024
Language en - English
Page Count 3
Revision Level 24
Supercedes
Committee D11.27
Publish Date Document Id Type View
May 1, 2024 D6814-24 Revision
Dec. 10, 2002 D6814-02E01 Revision
Sept. 1, 2023 D6814-02R23 Reaffirmation
Nov. 1, 2018 D6814-02R18 Reaffirmation
Nov. 1, 2013 D6814-02R13 Reaffirmation
July 1, 2008 D6814-02R08 Reaffirmation