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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 seismic design of buildings
WITHDRAWN published on 20.7.2001
Selected format:Code for seismic design of buildings
WITHDRAWN published on 7.7.2016
Selected format:Code for design of outdoor water supply engineering
WITHDRAWN published on 18.1.2006
Selected format:Code for design of outdoor wastewater engineering
WITHDRAWN published on 18.1.2006
Selected format:Code for design of building water supply and drainage
WITHDRAWN published on 15.4.2003
Selected format:Code of design on building fire protection and prevention
WITHDRAWN published on 12.7.2006
Selected format:Code for design of steel structures
WITHDRAWN published on 25.4.2003
Selected format:Technical code of cold-formed thin-wall steel structures
WITHDRAWN published on 27.9.2002
Selected format:Code for design of heating ventilation and air conditioning
WITHDRAWN published on 5.11.2003
Selected format:Method of determination for precipitate-percentage of liquid gold for ceramics use
WITHDRAWN published on 1.1.1985
Selected format:Latest update: 2026-02-06 (Number of items: 2 260 317)
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