CATEGORIES

    GB/T 44824-2024《Biaxial stretching polylactic acid film》

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    GB/T 36800.3-2025《Plastics—Thermomechanical analysis (TMA)—Part 3:Determination of penetration temperature》

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    GB/T 1634.1-2025《Plastics—Determination of temperature of deflection under load一Part 1 : General test method》

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    GB/T 45128-2025《Plastics—Determination of water content》

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    GB/T 6595-2025《Plastics—Test method for fish eye count of polypropylene resin》

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    GB/T 45331-2025《ePTFE membrane for reinforcement of proton exchange membrane》

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    GB/T 45332-2025《Proton exchange membrane for hydrogen production via water electrolysis》

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    GB/T 9869.1-2025《Rubber—Measurement of vulcanization characteristics using curemeters—Part 1：Introduction》

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    GB/T 45596-2025《Raw rubber or unvulcanised compounds—Determination of green strength》

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    GB/T 17643-2025《Geosynthetics—Polyethylene geomembrane》

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    GB/T 17821-2025《Rubber latex—Determination of density between 5℃ and 40℃》

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    GB/T 8300-2025《Natural rubber latex concentrate—Determination of alkalinity》

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    GB/T 4498.1-2025《Rubber—Determination of ash—Part 1: Muffle furnace method》

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    GB/T 45694-2025《Test methods for natural fibre-reinforced plastic composite (NFC) deck boards》

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    GB/T 46020.2-2025《Plastics—Guide of design for recycling—Part 2:High density polyethylene(PE-HD) materials》

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    GB/T 46020.1-2025《Design Guidelines for Recyclable and Regenerative Plastics — Part 1: Polyethylene Terephthalate (PET) Materials》

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    GB/T 46019.2-2025《Plastics—Identification of recycled plastics—Part 2: Polypropylene(PP) materials》

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    GB/T 46018.2-2025《Plastics—Technical specification for evaluation of recycled plastic products—Part 2 ：Polystyrene(PS) materials》

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    GB/T 46018.1-2025《Plastics—Technical specification for evaluation of recycled plastic products—Part 1:Poly(ethylene terephthalate) (PET) materials》

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    GB/T 40006.13-2025《Plastics—Recycled plastics—Part 13: Poly(pheylene ether) (PPE) materials》

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    GB/T 46019.1-2025《Plastics—Identification of recycled plastics—Part 1: Poly(ethylene terephthalate) (PET) materials》

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    GB/T 3780.31-2025《Carbon black—Part 31: Determination of total hydrogen content》

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    GB/T 3780.21-2025《Carbon black—Part 21：Determination of sieve residue—Water washing method》

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    GB/T 3780.7-2025《Carbon black—Part 7：Determination of pH value》

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    GB/T 31334.7-2025《Test methods for dipped canvas—Part 7 : Adhension properties after dynamic fatigue》

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    GB/T 30312-2025《Test method for thermal shrinkage of dipped yarns and cords》

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    GB/T 46230-2025《Solution-polymerized SBR—Evaluation methods of viscoelastic properties》

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    GB/T 3781.9-2025《Acetylene black—Part 9：Determination of resistivity》

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    GB/T 39693.4-2025《Rubber, vulcanized or thermoplastic—Determination of hardness—Part 4: Indentation hardness by durometer method (Shore hardness)》

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    GB/T 39693.2-2025《Rubber, vulcanized or thermoplastic—Determination of hardness—Part 2: Hardness between 10 IRHD and 100 IRHD》

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