ASTM International - ASTM D4894-98a
Standard Specification for Polytetrafluoroethylene (PTFE) Granular Molding and Ram Extrusion Materials
|Publication Date:||10 November 1998|
|ICS Code (Thermoplastic materials):||83.080.20|
1.1 This specification covers granular resins of polytetrafluoroethyl
1.2 The materials covered by this specification formerly were covered in Specification D1457 as Types I, IV, V, VI, VII and VIII.
1.3 The values stated in SI units as detailed in Practice E380 are to be regarded as the standard, and the practices of E380 are incorporated herein.
1.4 The following precautionary caveat pertains only to the Specimen Preparation section, Section 9, and the Test Methods section, Section 10, of this specification: 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. See Notes 1, 3 and 9 for specific cautionary statements.
Note 1-Most of the technical content of this standard is included as part of ISO 12086-1 and ISO 12086-2 Part 2. These standards have been approved for publication and are in the final editing process.