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ASTM F2466-10(2024)

Current Reaffirmation

Standard Practice for Determining Silicone Volatiles in Silicone Rubber for Transportation Applications

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1.1 This practice covers a means to determine the percent silicone-producing volatiles present in heat-cured silicone rubber and room temperature-cured silicones (RTV).

1.2 Silicone-producing volatiles contribute to fouling of oxygen sensor systems used in the control of vehicle emissions.

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.


4.1 Use of this practice in conjunction with realistic maximum volatility tolerance level can help minimize the risk of oxygen sensor dysfunction from formed-in-place-sealants in transportation applications. This practice provides a method for determination of percentage volatiles in silicone elastomers. The volatile silicones from a commercial silicone are primarily cyclo dimethyl-siloxane. Other species present having GC retention times similar to those of the cyclics are assumed to be silicone as well.

SDO ASTM: ASTM International
Document Number F2466
Publication Date Sept. 1, 2024
Language en - English
Page Count 5
Revision Level 10(2024)
Supercedes
Committee F03.50
Publish Date Document Id Type View
May 1, 2010 F2466-10 Revision
March 1, 2005 F2466-05 Revision
Sept. 1, 2024 F2466-10R24 Reaffirmation
Aug. 1, 2018 F2466-10R18 Reaffirmation