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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
Silver jewellery alloys—Determination of silver—Volumetric(potentionmetric)method using potassium bromide
WITHDRAWN published on 31.12.2008
Selected format:General specification for water extinguishing agent series
WITHDRAWN published on 30.8.1999
Selected format:Water based extinguishing agent
WITHDRAWN published on 8.10.2008
Selected format:Ground equipments of general aviation aerodrome
WITHDRAWN published on 1.9.1999
Selected format:Clothes—Survey method for human body head round and size designation for headwear
WITHDRAWN published on 31.8.1999
Selected format:The specification for the ships"" auxiliary marine hydrology and metereological observations
WITHDRAWN published on 10.8.1999
Selected format:The methods of determining for the warning tidal level
WITHDRAWN published on 10.8.1999
Selected format:Tempered and heat-strengthened glass used in curtain walls
WITHDRAWN published on 1.9.1999
Selected format:Shipbuilding and marine structures—Symbols for computer applications
WITHDRAWN published on 31.8.1999
Selected format:Shipbuilding and marine structures—Dredgers—Terminology
WITHDRAWN published on 31.8.1999
Selected format:Latest update: 2026-04-28 (Number of items: 2 274 955)
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