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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
Silicone and modified silicone sealants for building
Standard published on 7.9.2017
Selected format:Sand for construction
Standard published on 15.4.2022
Selected format:Pebble and crushed stone for construction
Standard published on 15.4.2022
Selected format:Asphalt glass felt used in waterproofing
Standard published on 30.6.2008
Selected format:Industrial castors and wheels
Standard published on 30.12.2011
Selected format:Technical drawings - Size and layout of drawing sheets
Standard published on 26.6.2008
Selected format:Technical drawings--Scales
Standard published on 9.11.1993
Selected format:Technical drawings--Lettering
Standard published on 9.11.1993
Selected format:Technical product documentation-Lettering-part4:Diacritical and particular marks for the Latin alphabet
Standard published on 1.7.2005
Selected format:Technical product documentation-Lettering-Part6:Cyrillic alphabet
Standard published on 1.7.2005
Selected format:Latest update: 2026-04-16 (Number of items: 2 272 849)
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