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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
Industrial circulating cooling water—Examination of slime formed fungi—Standard of plate count
WITHDRAWN published on 6.8.1993
Selected format:Industrial circulating cooling water—Examination of soil fangi—Srandard of plate count
WITHDRAWN published on 6.8.1993
Selected format:Industrial circulating cooling water—Sulfate-reducing bacteria—MPN test
WITHDRAWN published on 6.8.1993
Selected format:Industrial circulating cooling water—Examination of iron bacteria—MPN test
WITHDRAWN published on 6.8.1993
Selected format:Textile fabrics—Burning behaviour—The 45°test determination of flame spread rate
WITHDRAWN published on 21.9.1993
Selected format:Textile fabrics—Burning behaviour—The 45°test determination of damaged area and ignition times
WITHDRAWN published on 21.9.1993
Selected format:Retreading and repair of tyres(radial tyres)
WITHDRAWN published on 9.9.1993
Selected format:Retreaded tyre for passenger car
WITHDRAWN published on 1.11.2007
Selected format:Chloroprene rubber CR121
WITHDRAWN published on 9.9.1993
Selected format:Classification standard for flying accidents of aircraft
WITHDRAWN published on 16.10.1993
Selected format:Latest update: 2026-05-15 (Number of items: 2 278 685)
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