1.1 This specification describes the physical, chemical, and mechanical performance requirements for polytetrafluoroeth-ylene (PTFE) pre-fabricated by compression molding or extru-sion into sheet, tube, and rod shapes which may be used for implant products.
1.2 PTFE is a high molecular weight straight chain member of the generic class of perfluorocarbon (containing only the elements fluorine and carbon) polymers.
