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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
Plastics—Symbols and abbreviated terms—Part 4: Flame retardants
Execute Date: february 2027
Standard published on 2.7.2026
Selected format:Harbour crane - Technical characteristics and acceptance documents
Standard published on 31.3.2009
Selected format:Static vacuum insulated cryogenic pressure vessels—Part 1:General requirements
Standard published on 10.12.2019
Selected format:Static vacuum insulated cryogenic pressure vessels—Part 2:Materials
Standard published on 10.12.2019
Selected format:Static vacuum insulated cryogenic pressure vessels—Part 3Design
Standard published on 10.12.2019
Selected format:Static vacuum insulated cryogenic pressure vessels—Part 4Fabrication
Standard published on 10.12.2019
Selected format:Static vacuum insulated cryogenic pressure vessels—Part 5Inspection and testing
Standard published on 31.12.2019
Selected format:Static vacuum insulated cryogenic pressure vessels—Part 6Safety protection
Standard published on 31.12.2019
Selected format:Static vacuum insulated cryogenic pressure vessels— Part 7Rules of pressure strengthening for inner vessels
Standard published on 1.11.2017
Selected format:Testing method of performance for vacuum insulation cryogenic equipment - Part 1: Basic requirements
Standard published on 26.9.2010
Selected format:Latest update: 2026-09-11 (Number of items: 2 300 165)
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