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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
Shanks for rock drilling machines and pneumatic tools and fitting dimensions of chuck bushings
WITHDRAWN published on 9.6.2004
Selected format:Earth-moving machinery—Method of test for the measurement of draw-bar pull
WITHDRAWN published on 13.5.1986
Selected format:Noise limitation for tractors
WITHDRAWN published on 16.11.1995
Selected format:Test methods for boat-type tractors
WITHDRAWN published on 1.1.1986
Selected format:Sampling procedures and charts for inspection by variables for percent nonconforming(Applied to inspection of successive lots or batches)
WITHDRAWN published on 13.5.1986
Selected format:Sampling procedures and charts for inspection by variables for percent nonconforming(Applied to inspection of successive lots or batches)
WITHDRAWN published on 13.6.2002
Selected format:Sampling procedures for inspection by variables—Part 4:Procedures for assessment of declared quality levels for mean
WITHDRAWN published on 16.7.2008
Selected format:Precision of test methods Determination of repeatability and reproducibility for a standard test method by interlaboratory tests
WITHDRAWN published on 13.5.1986
Selected format:Accuracy (trueness and precision) of measurement methods and results -Part 4: Basic methods for the determination of the trueness of a standard measurement method
WITHDRAWN published on 13.11.2006
Selected format:Chemical reagent—Tin() chloride dihydrate
WITHDRAWN published on 20.9.1988
Selected format:Latest update: 2026-11-05 (Number of items: 2 209 078)
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