CATEGORIES

    GB/T 30099-2025《Laboratory centrifuges》

    Active

    GB/T 26250-2025《Electronic gas—Arsine》

    Active

    GB/T 18867-2025《Electronic gas—Sulphur hexaflouride》

    Active

    GB/T 28124-2025《Gas analysis—Determination of the trace contents of hydrogen,oxygen,methane and carbon monoxide in inert gases—Gas chromatography with zirconia detector》

    Active

    GB/T 28125.1-2025《Gas analysis—Determination of the contents of hazardous materials in air separation process—Part 1: Determination of contents of methane,acetylene,carbon dioxide and hydrocarbons》

    Active

    GB/T 2832-1996《Test method for crushing strength of vitrified pipe》

    Active

    GB/T 2833-1996《Test method for cross-bending strength of vitrified pipe》

    Active

    GB/T 13477.7-2002《Test method for building sealants--Part 7:Determination of low-temperature flexibility》

    Active

    GB/T 13477.6-2002《Test method for building sealants--Part 6:Determination of flow》

    Active

    GB/T 13477.5-2002《Test method for building sealants--Part 5:Determination for tack-free time》

    Active

    GB/T 13477.1-2002《Test method for building sealants--Part 1:Specifications for test substrates》

    Active

    GB/T 13477.16-2002《Test Methods for Building Sealants—Part 16: Determination of Compression Properties》

    Active

    GB/T 19512-2004《Acoustics--Measurements on silencers in situ》

    Active

    GB/T 2419-2005《Test method for fluidity of cement mortar》

    Active

    GB/T 1345-2005《The test sieving method for fineness of cement》

    Active

    GB/T 19889.3-2005《Acoustics-Measurement of sound insulation in buildings and of building elements-Part 3:Laboratory measurements of airborne sound insulation of building elements》

    Active

    GB/T 19889.4-2005《Acoustics-Measurement of sound insulation in buildings and of building elements-Part4:Field measurements of airborne sound insulation between rooms》

    Active

    GB/T 19889.6-2005《Acoustics-Measurement of sound insulation in buildings and of building elements-Part 6:Laboratory measurements of impact sound insulation of floors》

    Active

    GB/T 19889.8-2006《Acoustics―Measurement of sound insulation in buildings and of building elements―Part 8 :Laboratory measurements of the reduction of transmitted impact noise by floor coverings on a heavyweight standard floor》

    Active

    GB/T 19889.5-2006《Acoustics―Measurement of sound insulation in buildings and of building elements―Part 5: Field measurements of airborne sound insulation of facade elements and facades》

    Active

    GB/T 19889.10-2006《Acoustics―Measurement of sound insulation in buildings and of building elements―Part 10：Laboratory measurements of airborne sound insulation of small building elements》

    Active

    GB/T 328.9-2007《Test methods for building sheets for waterproofing - Part 9: Plastic and rubber sheets for waterproofing-tensile properties》

    Active

    GB/T 328.8-2007《Test methodSs for building sheets for waterproofing - part 8: Bitumen sheets for waterproofing-tensile properties》

    Active

    GB/T 328.7-2007《Test methods for building sheets for waterproofing - Part 7: Plastic and rubber sheets for waterproofing-length,width,straightness and flatness》

    Active

    GB/T 328.6-2007《Test methods for building sheets for waterproofing - Part 6: Bitumen sheets for waterproofing-length,width and straightness》

    Active

    GB/T 328.5-2007《Test methods for building sheets for waterproofing - Part 5: Plastic and rubber sheets for waterproofing-thickness and mass per unit area》

    Active

    GB/T 328.4-2007《Test methods for building sheets for waterproofing - Part 4: Bitumen sheets for waterproofing-thickness and mass per unit area》

    Active

    GB/T 328.3-2007《Test methods for building sheets for waterproofing - Part 3: Plastic and rubber sheets for waterproofing-visible defects》

    Active

    GB/T 328.25-2007《Test methods for building sheets for waterproofing - part 25: Bitumen,plastic and rubber sheets for waterproofing-resistance to static loading》

    Active

    GB/T 328.24-2007《Test methods for building sheets for waterproofing - Part 24: Bitumen,plastic and rubber sheets for waterproofing-resistance to impact》

    Active