This standard specifies the model specifications, technical requirements, test methods, inspection rules and markings, packaging, transportation and storage of polytetrafluoroethylene rods (hereinafter referred to as "rods"). This standard is applicable to unfilled polytetrafluoroethylene resin (can contain recycled polytetrafluoroethylene) for processing gaskets, seals and lubricating materials working in various corrosive media, as well as electrical insulating parts used at various frequencies. Resin) rods formed by molding, paste extrusion or plunger extrusion processes.
QB/T 4041-2010 Referenced Document
GB/T 1033.1-2008 Plastics.Methods for determining density of non-celluar plastics.Part1:Immersion method,liquid pyknometer method and titration method
GB/T 1040.2-2006 Plastics. Determination of tensile properties. Part 2: Test conditions for moulding and extrusion plastics
GB/T 1408.1-2006 Electrical strength of insulating materials-Test methods-Part 1:Tests at power frequencies
GB/T 2828.1-2003 Sampling procedures for inspection by attributes--Part 1: Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection
GB/T 2918-1998 Plastics--Standard atmospheres for conditioning and testing