组合使用关键词、标准类型、状态与 ICS 分类，快速定位所需国家标准。
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GB/T 46830.2-2026
Plastics—Liquid-crystal polymers（LCP）moulding and extrusion materials—Part 2: Preparation of test specimens and determination of properties
GB/T 46830.1-2026
Plastics—Liquid-crystal polymers（LCP）moulding and extrusion materials—Part 1:Designation system and basis for specifications
GB/T 47592-2026
Plastics—Amine epoxide hardeners—Determination of primary, secondary and tertiary amine group nitrogen content
GB/T 47599-2026
Plastics—Determination of apparent activation energies of property changes in standard weathering test methods
GB/T 8808-2026
Test method for peel force of flexible laminated plastics
GB/T 7142-2026
Plastics—Determination of time-temperature limits after prolonged exposure to heat
GB/T 1634.3-2026
Plastics—Determination of temperature of deflection under load—Part 3:High-strength thermosetting laminates and long-fibre-reinforced plastics
GB/T 1040.3-2026
Plastics—Determination of tensile properties—Part 3: Test conditions for films and sheets
GB/T 12005.2-2026
Polyacrylamide—Part 2：Determination of properties
GB/T 12009.1-2026
Plastics—Isocyanates for use in the production of polyurethanes—Part 1: Determination of total chlorine
GB/T 1040.4-2026
Plastics—Determination of tensile properties—Part 4 :Test conditions for isotropic and orthotropic fibre-reinforced plastic composites
GB/T 19467.2-2026
Plastics—Acquisition and presentation of comparable single-point data—Part 2:Long-fibre-reinforced plastics
GB/T 19467.1-2026
Plastics—Acquisition and presentation of comparable single-point data—Part 1：Moulding materials
GB/T 4618.3-2026
Plastics—Determination of chlorine content in epoxy resins—Part 3: Total chlorine
GB/T 32363.1-2026
Plastics—Polyamide (PA) moulding and extrusion materials—Part 1: Designation system and basis for specifications
GB/T 47624-2026
Plastics—Determination of mode I plane-strain crack-arrest toughness
GB/T 22047-2026
Determination of the ultimate aerobic biodegradability of plastic materials in soil—Method by measuring the oxygen demand or carbon dioxide evolved in a closed respirometer
GB/T 19811-2026
Plastics—Determination of the degree of disintegration of plastic materials under defined composting conditions in a pilot-scale test
GB/T 47551-2026
Plastics—Limit requirements for hazardous substances—Polybrominated biphenyls and polybrominated diphenyl ethers
GB/T 47549-2026
Plastics—Determination of fracture toughness—J-R curves approach