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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Steel plate,sheet and strip for pressure equipments—Part 3:Low alloy steel with specified low temperature properties
Standard published on 6.8.2023
Selected format:Steel plate,sheet and strip for pressure equipments—Part 4:Nickel-alloy steels with specified low temperature properties
Standard published on 6.8.2023
Selected format:Steel plate, sheet and strip for pressure equipments—Part 5:High manganese steel with specified low temperature properties
Standard published on 6.8.2023
Selected format:Steel plate, sheet and strip for pressure equipments—Part 6:Quenched and tempered high strength steel
Standard published on 6.8.2023
Selected format:Steel plate,sheet and strip for pressure equipments—Part 7:Stainless steel and heat resisting steel
Standard published on 6.8.2023
Selected format:Steel plate,sheet and strip for pressure equipments—Part 8: Rolled homogeneous and heterogeneous clad steel plate
Standard published on 1.8.2025
Selected format:Plastics—Phenol-formaldehyde mouldings—Determination of free phenols—lodometric method
Standard published on 14.6.2016
Selected format:Identification of polymers by pyrolytic gas chromatography
Standard published on 30.12.1986
Selected format:
Plastics—Identification of polymers—Pyrolytic gas chromatography method
Execute Date: october 2026
Standard published on 31.3.2026
Selected format:Poly(methyl methacrylate)cast sheets
Standard published on 4.8.2008
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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