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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
Code for design of lightning protection and earthing engineering for telecommunication bureaus(stations)
Standard published on 2.4.2011
Selected format:Chemical analysis of magnesia-alumina refractories
Standard published on 23.8.2024
Selected format:Code for construction quality acceptance of non-metallic piping engineering in petrochemical engineering
Standard published on 26.7.2011
Selected format:Standard for Compiling the design documents of oil and gas field surface construction projects
Standard published on 2.4.2011
Selected format:Standard for compiling the design documents of natural gas treating plant projects
Standard published on 2.4.2011
Selected format:Technical code for slope roof engineering
Standard published on 12.5.2011
Selected format:Code for design of fire protection and prevention of alcoholic beverages factory
Standard published on 26.7.2011
Selected format:Code for installation of polyester,polyamide,polypropylene fiber-making equipments and quality acceptance
Standard published on 26.7.2011
Selected format:Code for design of metallurgical equipment foundation in iron and steel enterprises
Standard published on 12.5.2011
Selected format:Code for design of 1000KV substation
Standard published on 18.2.2011
Selected format:Latest update: 2026-07-05 (Number of items: 2 286 116)
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