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Standard

Plastic Sheet and Strip, Polyimide

2015-04-13
HISTORICAL
AMSP46112A
This specification covers polyimide sheet and strip with or without heat sealable FEP-fluorocarbon coatings.
Standard

Polytetrafluoroethylene Sheet-Asbestos Fiber Reinforced High Compressibility, Low Density

2014-01-10
CURRENT
AMS3843D
This specification covers polytetrafluoroethylene resin in the form of asbestos-fiber-reinforced sheet. Primarily for gaskets requiring a minimum variation in thickness and compatibility with liquid oxygen. This product contains asbestos fiber. Abrasion or other fiber-releasing operations require special control techniques. Review procedures with responsible safety personnel before initiating manufacturing operations.
Standard

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

2013-11-06
CURRENT
AS4720A
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.
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