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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
Geometrical Product Specifications (GPS)—Geometrical tolerancing—Maximum material requirement (MMR),least material requirement (LMR) and reciprocity requirement (RPR)
WITHDRAWN published on 16.3.2009
Selected format:Measurement of UV-A radiation (black light) used in non-destructive testing
WITHDRAWN published on 18.12.1996
Selected format:Hexagon flange bolts—Small series
WITHDRAWN published on 18.12.1996
Selected format:Hexagon bolts with flange—Small series
WITHDRAWN published on 10.2.2004
Selected format:Hexagon bolts with flange with metric fine Pitch thread—Small series
WITHDRAWN published on 10.2.2004
Selected format:Technical drawings—Simplified representation—Part 1:Pictorial presentation
WITHDRAWN published on 18.12.1996
Selected format:Technical drawings—Simplified representation—Part 2:Dimensioning
WITHDRAWN published on 18.12.1996
Selected format:Security and alarm engineering specification for banking business place
WITHDRAWN published on 18.12.1996
Selected format:Transfer equipment of alarm picture signal through cable
WITHDRAWN published on 18.12.1996
Selected format:Designations for signals and connections
WITHDRAWN published on 18.12.1996
Selected format:Latest update: 2025-11-11 (Number of items: 2 243 547)
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