1 Scope
This Standard specifies the definition, requirements, test methods, inspection rules, marking, packing, storing and transporting of polytetrafluoroethylene molding powder.
This Standard is applicable to the polytetrafluoroethylene molding powder produced by polymerization with suspension method.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the versions of this Standard indicated are all effective, and all standards are subject to revision, and parties to agreements based on this regulation are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below.
GB/T 1033 - 86 Test Method for Density and Relative Density of Plastics
GB/T 1039 - 92 Plastics-General Rules for the Test Method of Mechanical Properties
GB/T 1040 – 92 Plastics-Determination of Tensile Properties (neq ISO/R 527–66)
GB 1408 - 89 Test Methods for Power-frequency Electrical Strength of Solid Insulating Material
GB 2918 - 82 (89) Thermo Gravimetric Analysis (TGA) for Determination of Oxidation Temperature and Ash Content of Carbon Nanotubes (eqv ISO 291 – 77)
GB/T 6678 - 86 General Principles for Sampling Chemical Products
HG/T 2899 - 1997 Designation of Polytetrafluoroethylene Materials
HG/T 2900 - 1997 Testing Method for Bulk Density of Polytetrafluoroethylene Resin
KG/T 2901 - 1997 Test Methods for Particle Size of Polytetrafluoroethylene
3 Definition
