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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
Thin wall tube of nickel and nickel alloy
WITHDRAWN published on 26.6.1987
Selected format:Casting tin-lead solders
WITHDRAWN published on 9.6.2000
Selected format:Anodizing of aluminium and aluminium alloys—General specifications for anodic oxidation coatings
WITHDRAWN published on 26.6.1987
Selected format:Anodic oxide coatings and organic polymer coatings on aluminium and its alloys—Part 1:Anodic oxide coatings
WITHDRAWN published on 30.4.2007
Selected format:Anodic oxide coatings and organic polymer coatings on aluminium and its alloys—Part 2:Combined anodic oxide coating
WITHDRAWN published on 30.4.2007
Selected format:Anodic oxide coatings and organic polymer coatings on aluminium and its alloys—Part 3:Organic polymer coatings
WITHDRAWN published on 30.4.2007
Selected format:Anodizing of aluminium and aluminium alloys—Definitions thickness of anodic oxidation coatings and conventions concerning the measurement of thickness
WITHDRAWN published on 26.6.1987
Selected format:General specification for echo-sounding equipment in ships
WITHDRAWN published on 20.11.1995
Selected format:Petroleum products—Determination of vapour pressure—Reid method
WITHDRAWN published on 3.7.1987
Selected format:Gasoline—Determination of oxidation stability—Induction period method
WITHDRAWN published on 3.7.1987
Selected format:Latest update: 2025-07-11 (Number of items: 2 208 012)
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