CATEGORIES

    GB/T 9966.6-2020《Test methods for natural stone—Part 6:Determination of acid resistance》

    Active

    GB/T 9966.5-2020《Test methods for natural stone—Part 5:Determination of hardness》

    Active

    GB/T 9966.4-2020《Test methods for natural stone - Part 4: Abrasion resistance test》

    Active

    GB/T 9966.3-2020《Test methods for natural stone—Part 3:Determination of water absorption,bulk density,true density and true porosity》

    Active

    GB/T 9966.2-2020《Test methods for natural stone—Part 2:Determination of dry,wet and after freezing flexural strength》

    Active

    GB/T 9966.1-2020《Test methods for natural stone—Part 1:Determination of dry,wet and after freezing compressive strength》

    Active

    GB/T 39524-2020《Test method of weatherability for building windows and doors》

    Active

    GB/T 41060-2021《Test method for determining frost resistance of cement mortar》

    Active

    GB/T 41156-2021《Low modulus adhesives for exterior tile finishing》

    Active

    GB/T 41078-2021《Test methods for harmful substances in building waterproofing materials》

    Active

    GB/T 13477.21-2022《Test method for building sealants—Part 21：Determination of color change after laboratory accelerated weathering procedures》

    Active

    GB/T 18244-2022《Test methods for weathering resistance of building waterproof materials》

    Active

    GB/T 11942-2022《Test method of chroma for colour building materials》

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    GB/T 13477.22-2022《Test method for building sealants—Part 22：Determination of curing behaviour》

    Active

    GB/T 13477.23-2022《Test method for building sealants—Part 23：Durability to extension compression cycling under accelerated weathering》

    Active

    GB/T 16731-2023《Classification of sound absorption property for absorbent products using in buildings》

    Active

    GB/T 42898-2023《Determination of the emission of semivolatile organic compounds（SVOC） for building products》

    Active

    GB/T 43875-2024《Determination method of total chromium in cement raw materials》

    Active

    GB/T 43872-2024《Test methods for determining the immobilization ratio of chloride in cement》

    Active

    GB/T 45012-2024《Thermal insulating products for industrial installations—Determination of the coefficient of linear thermal expansion at sub-ambient temperatures》

    Active

    GB/T 7019-2024《Test methods for fiber cement products》

    Active

    GB/T 1346-2024《Test methods for water requirement of standard consistency, setting time and soundness of the portland cement》

    Active

    GB/T 18445-2025《Cementitious capillary crystalline waterproofing materials》

    Active

    GB/T 30807-2025《Thermal insulating products for building applications—Determination of long-term water absorption by immersion》

    Active

    GB/T 32983-2025《Thermal insulating products for building applications—Determination of compressive creep》

    Active

    GB/T 45778-2025《Test method for determining chemical shrinkage of cement paste》

    Active

    GB/T 23440-2025《Inorganic waterproof and leakage-preventing materials》

    Active

    GB/T 31040-2025《Test methods of residual formaldehyde from the concrete admixtures》

    Incoming

    GB/T 23446-2025《Spray polyurea waterproofing coating》

    Incoming

    GB/T 18242-2025《Styrene butadiene styrene/Atactic polypropylene modified bituminous waterproofing sheets》

    Incoming