ASTM-F2191 › Standard Specification for Packing Material, Graphitic or Carbon Braided Yarn
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1.1 This specification covers staple or continuous filament carbon/graphite yarn valve stem compression packing, suitable for use as end-rings on packing systems for valves. Intended services include steam, hydrocarbons, water and non-oxidizing chemicals. Where this specification is invoked as ASTM F 2191, Sections apply. Where this specification is invoked as ASTM/DoD F 2191, Sections and the Supplementary Requirements are applicable.
1.2 The values stated in SI units are to be regarded as the standard.
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.
staple; carbon; graphite; yarn; packing; hydrocarbons; ICS Number Code 55.040 (Packaging materials and accessories)
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2013 R20(E1) EDITION
March 5, 2020