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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
Standard for basic terminology of termite control project
Standard published on 28.5.2012
Selected format:Code for acceptance of water-saving irrigation engineering
Standard published on 28.5.2012
Selected format:Code for design of safety instrumented system in petrochemical engineering
Standard published on 7.2.2013
Selected format:Code for design of nonferrous metal mining
Standard published on 28.5.2012
Selected format:Code for construction of timber structures
Standard published on 28.5.2012
Selected format:Code for design of flood detention and retarding basin
Standard published on 28.5.2012
Selected format:Code for construction and acceptance of dry-type smoothing reactors in converter stations at ±800kV and below
Standard published on 28.5.2012
Selected format:Code for construction and acceptance of converter valve in converter station at ±800kV and below
Standard published on 28.5.2012
Selected format:Code for construction and acceptance of converter transformer in converter station at ±800kV and below
Standard published on 28.5.2012
Selected format:Code for construction and acceptance of frame works in converter station at ±800kV and below
Standard published on 28.5.2012
Selected format:Latest update: 2026-10-26 (Number of items: 2 208 060)
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