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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
Measuring method for kinematic viscosity of plasticizers(Pinkevitch method)
WITHDRAWN published on 28.12.1982
Selected format:Methods for emission spectrum analysis of tungsten
WITHDRAWN published on 4.11.1996
Selected format:Test methods for laser induced damage threshold of optical surfaces Part 1:1 on 1 test
WITHDRAWN published on 7.11.1996
Selected format:Polyarcryl staple
WITHDRAWN published on 11.11.1996
Selected format:Nylon drawn yarn
WITHDRAWN published on 11.11.1996
Selected format:Nylon drawn yarn
WITHDRAWN published on 6.8.2008
Selected format:Polyester filament for industry
WITHDRAWN published on 11.11.1996
Selected format:Polyester filament for industry
WITHDRAWN published on 6.8.2008
Selected format:Regenerated rayon filament fabrics
WITHDRAWN published on 11.11.1996
Selected format:Envelopes for express mail service
WITHDRAWN published on 12.11.1996
Selected format:Latest update: 2025-09-15 (Number of items: 2 233 685)
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