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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
Testing methods for thin wall metal pipe line and fittings for sprinkler irrigation
WITHDRAWN published on 1.1.1986
Selected format:Thin wall metal pipe for sprinkler irrigation
WITHDRAWN published on 1.1.1986
Selected format:Technical specifications for thin wall metal pipe line fittings for sprinkler irrigation
WITHDRAWN published on 1.1.1986
Selected format:Measurement of noise emitted by rock drilling machines and pneumatic tools—Engineering method
WITHDRAWN published on 1.3.1986
Selected format:Measurement of noise emitted by rock drilling machines and pneumatic tools—Engineering method
WITHDRAWN published on 9.6.2004
Selected format:Volumetric rating for loader buckets
WITHDRAWN published on 1.1.1986
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WITHDRAWN published on 1.1.1978
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WITHDRAWN published on 1.1.1984
Selected format:Marine cast iron flanged stop valves
WITHDRAWN published on 24.5.1993
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WITHDRAWN published on 1.1.1986
Selected format:Latest update: 2026-04-28 (Number of items: 2 274 955)
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