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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
Hygienic determination method of sulfur dioxide in air of residential areas—Tetrachloromercurate (TCM)-pararosaniline spectrophotometric method
WITHDRAWN published on 23.2.1988
Selected format:Hygienic determination method of mercury in air of residential areas—Gold amalgamation-atomic adsorption spectrometric method
WITHDRAWN published on 23.2.1988
Selected format:Hygienic standard for arsenic in soil
WITHDRAWN published on 23.2.1988
Selected format:Test procedure on working site for measuring the loading percentage of a three-phase induction motor
WITHDRAWN published on 14.3.1988
Selected format:-
WITHDRAWN published on 1.1.1988
Selected format:Quality steel wire ropes
WITHDRAWN published on 1.1.1988
Selected format:Steel wire ropes
WITHDRAWN published on 5.4.1996
Selected format:Quality wire for steelwire ropes use
WITHDRAWN published on 1.1.1988
Selected format:Wire for steel wire ropes use
WITHDRAWN published on 5.4.1996
Selected format:Food additive--Packing of sodium carbonate
WITHDRAWN published on 1.1.1988
Selected format:Latest update: 2026-04-26 (Number of items: 2 274 794)
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