Batch Qualification Procedure for Tensile Strength, Elongation and Specific Gravity of Polytetrafluoroethylene (PTFE) Resins, Virgin, Modified, Pigmented and Filled Compounds Used for Compression Molding

Standard:
Issued:
  • 2007-09-05
 
  • HISTORICAL Access the latest revision: AS4720A
Publisher:
  • SAE International
Pages:
8
Scope:

This SAE Aerospace Standard (AS) covers batch qualification procedure for virgin and compounded polytetrafluoroethylene (PTFE) resins used for compression molding. AS9100 requires virgin and modified PTFE as a testing material be representative of production PTFE and/or parts. The testing specified herein is limited to tensile strength, elongation and specific gravity. Any other tests required by the purchaser must be specified separately.

Rationale:

This standard provides a PTFE resin batch qualification procedure for tensile strength, elongation and specific gravity to ensure AS9100 compliance. AS9100 requires that any material specification shall be representative of production material and/or parts made from that material. Current ASTM specifications for qualification of batches of PTFE resins limit the qualification procedure, preventing such compliance.

History:
Standard Published Revision Status
AS4720A 2013-11-06 Latest Stabilized
2007-09-05 Historical Issued
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