GB/T 39714.1-2020
Plastics—Polytetrafluoroethylene(PTFE) semi-finished products—Part 1:Requirements and designation
- Standard No.
- GB/T 39714.1-2020
- Language
- Chinese
- Release Date
- 2020
- Published By
- 国家市场监督管理总局、中国国家标准化管理委员会
- Lastest
- GB/T 39714.1-2020
- Scope
- This Part of GB/T 39714 specifies the requirements and nomenclature for polytetrafluoroethylene (PTFE) semi-finished products. This section applies to polytetrafluoroethylene containing up to 1% comonomer for the manufacture of semi-finished products. The polytetrafluoroethylene used to make semi-finished products can be new materials, reprocessed or recycled resins. The maximum amount of pigment or colorant added is 1.5% by mass, which is also applicable to the processing conditions of unfilled PTFE products in different forms. This section divides semi-finished products into four grades based on differences in tensile strength and tensile strain at break. Semi-finished products can be classified as processing type (P type), dimensionally stable type (S type), and can also be designated as electrical type (E type) or other types for different applications. Note: For other standard specifications on PTFE semi-finished products mentioned in this section, see Appendix A for reference.
GB/T 39714.1-2020 Referenced Document
- GB/T 2035 Terms and definitions for plastics
- GB/T 2035-2008 Terms and definitions for plastics
- ISO 20568-1 Plastics - Fluoropolymer dispersions and moulding and extrusion materials - Part 1: Designation system and basis for specifications
GB/T 39714.1-2020 history
- 2020 GB/T 39714.1-2020 Plastics—Polytetrafluoroethylene(PTFE) semi-finished products—Part 1:Requirements and designation