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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
Grades of cemented carbide Part 1:grades of cemented carbide for cutting tools
WITHDRAWN published on 29.5.2001
Selected format:Grades of cemented carbide Part 2:grades of cemented carbide for geological and mining tools
WITHDRAWN published on 29.5.2001
Selected format:Grades of cemented carbide—Part 2:Grades of cemented carbide for geological and mining tools
WITHDRAWN published on 9.6.2014
Selected format:Grades of cemented carbide Part 3:grades of cemented carbide for wear parts
WITHDRAWN published on 29.5.2001
Selected format:Terms for waterproof bitumen and waterproof sheet
WITHDRAWN published on 13.7.2001
Selected format:Voltage bands for electrical installations ofbuildings
WITHDRAWN published on 12.7.2001
Selected format:Determination of the weight of tin coating plated on steel plate (or tape)
WITHDRAWN published on 1.1.1980
Selected format:Tin coated sheet(strip)—Tin coating mass testing method
WITHDRAWN published on 1.6.1995
Selected format:Tests on electric cables under fire conditions Part 1:Test on a single vertical insulated wire or cable
WITHDRAWN published on 12.7.2001
Selected format:Tests on electric and optical fibre cables under fire conditions—Part 11:Test for vertical flame propagation for a single insulated wire or cable—Apparatus
WITHDRAWN published on 26.6.2008
Selected format:Latest update: 2026-11-12 (Number of items: 2 209 301)
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