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GB/T 19276.1-2026
Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium—Part 1:Method by measuring the oxygen demand in a closed respirometer
GB/T 47330-2026
Plastics—Determination of specific aerobic biodegradation rate of solid plastic materials and disappearance time (DT50) under mesophilic laboratory test conditions
GB/T 19276.2-2026
Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium—Part 2:Method by analysis of evolved carbon dioxide
GB/T 2913-2026
Plastics—Test for whiteness
GB/T 7131-2026
Plastics—Identification of polymers—Pyrolytic gas chromatography method
GB/T 8325-2026
Plastics—Polymer dispersions and rubber latices—Determination of pH
GB/T 47392-2026
Plastics—Epoxy resins—Determination of degree of crosslinking of crosslinked epoxy resins by Fourier Transform Infrared (FTIR) Spectroscopy
GB/T 47391.3-2026
Plastics—Unsaturated-polyester powder moulding compounds (UP-PMCs)—Part 3:Requirements for selected moulding compounds
GB/T 47391.2-2026
Plastics—Unsaturated-polyester powder moulding compounds (UP-PMCs)—Part 2: Preparation of test specimens and determination of properties
GB/T 47391.1-2026
Plastics—Unsaturated-polyester powder moulding compounds (UP-PMCs)—Part 1: Designation system and basis for specifications
GB 16413-2026
Safety technical requirements for non-metallic products in coal mines
GB/T 47067-2026
Plastics moulded parts—Tolerances and acceptance conditions
GB/T 47071-2026
Plastics—Production quality control—Statistical method for using single measurements
GB/T 47066-2026
Plastics—Determination of the total luminous transmittance and reflectance
GB/T 19861-2026
Determination of exchange capacity of acrylic anion exchange resins
GB/T 46827.1-2025
Plastics—Methyl methacrylate-acrylonitrile-butadiene-styrene(MABS) moulding and extrusion materials—Part 1: Designation system and basis for specifications
GB/T 20417.2-2025
Plastics—Acrylonitrile-butadiene-styrene (ABS) moulding and extrusion materials—Part 2: Preparation of test specimens and determination of properties
GB/T 46837-2025
Plastics—Elasticity index—Determination of elastic property of melts
GB/T 46834-2025
Plastics—Determination of image clarity
GB/T 46835-2025
Plastics—Friction and wear by sliding—Identification of test parameters