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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
Building constructions--Modular coordination--Unified standards
WITHDRAWN published on 4.11.1986
Selected format:Fasteners—Ends of parts with external thread
WITHDRAWN published on 15.9.2001
Selected format:Moderate heat portland cement--Low heat portland slag cement
WITHDRAWN published on 31.3.1989
Selected format:Moderate heat portland cement Low heat portland cement Low heat portland slag cement
WITHDRAWN published on 22.5.2003
Selected format:Guide for standardization—Part 1:Standardization and related activities—General vocabulary
WITHDRAWN published on 20.6.2002
Selected format:Guides for standardization—Part 2:Adoption of international standards(ISO/IEC Guide 21:1999,MOD)
WITHDRAWN published on 9.4.2001
Selected format:Guidelines for standardization—Part 2:Adoption of international standards
WITHDRAWN published on 17.6.2009
Selected format:Guide for standardization—Part 3:Reference to documents
WITHDRAWN published on 26.5.2003
Selected format:Guide for standardization—Part 4:Safety aspects for their inclusion in standards
WITHDRAWN published on 26.5.2003
Selected format:Guide for standardization—Part 5:Environmental aspects for their inclusion in product standards
WITHDRAWN published on 27.12.2004
Selected format:Latest update: 2025-12-26 (Number of items: 2 253 153)
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