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