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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
Health standard for tetrahydrofuran in the air of workplace
WITHDRAWN published on 3.4.1996
Selected format:Health standard for gypsum dust in the air of workplace
WITHDRAWN published on 3.4.1996
Selected format:Health standard for acetic acid in the air of workplace
WITHDRAWN published on 3.4.1996
Selected format:Health standard for isophorone diisocyanate (IPDI) in the air of workplace
WITHDRAWN published on 3.4.1996
Selected format:Health standard for furan in the air of workplace
WITHDRAWN published on 3.4.1996
Selected format:Health standard for cyclonite(RDX)in the air of workplace
WITHDRAWN published on 3.4.1996
Selected format:Health standard for grain dust in the air of workplace
WITHDRAWN published on 3.4.1996
Selected format:Heaith standard for respirable cement dust in the air of workplace
WITHDRAWN published on 3.4.1996
Selected format:Health standard for mulberry silk dust in the aie of workplace
WITHDRAWN published on 3.4.1996
Selected format:-
WITHDRAWN published on 1.1.1979
Selected format:Latest update: 2025-11-05 (Number of items: 2 243 072)
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