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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
Water treatment chemicals--Disodium 1-hydroxyethylidene-1, 1-diphosphonate, tetrahydrate
WITHDRAWN published on 1.1.1989
Selected format:Analytical methods for boiler water and cooling water--Determination of quoaternary ammoniam salte--Trichloromethane extraction spectrophoto-metry
WITHDRAWN published on 22.3.1989
Selected format:Analytical methods for boiler water and cooling water—Determination of potassium—Flame photometry
WITHDRAWN published on 22.3.1989
Selected format:Rubber hose for fuel truck delivery
WITHDRAWN published on 1.1.1989
Selected format:Classification, dimension and basic requirement for rubber hose--Oil suction and discharge--Offshore mooring
WITHDRAWN published on 22.3.1989
Selected format:Rubber hose, oil suction and discharge, offshore mooring
WITHDRAWN published on 24.4.2003
Selected format:Rubber hose,oil suction and discharge,offshore mooring
WITHDRAWN published on 31.12.2013
Selected format:Rubber tubing and hoses for fuel circuits for internal combustion engines using conventional liquid fuels
WITHDRAWN published on 1.1.1989
Selected format:Rubber hoses for aircraft ground fuelling and defuelling
WITHDRAWN published on 22.3.1989
Selected format:Rubber hose and hose assemblies for aircraft ground fuelling and defuelling
WITHDRAWN published on 9.10.2003
Selected format:Latest update: 2026-04-28 (Number of items: 2 274 955)
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