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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
Determination of apparant density of magnesium powder—Scott volumetric method
WITHDRAWN published on 30.4.2004
Selected format:Magnesium powders and aluminium-magnesium alloy powders—Determination of particle size by dry sieving method
WITHDRAWN published on 27.12.1983
Selected format:Magnesium powder and aluminium-magnesium alloy powder determination of particle size—Dry sieving method
WITHDRAWN published on 30.4.2004
Selected format:Technical specification of high voltage bushing
WITHDRAWN published on 10.10.1999
Selected format:Insulated bushings for alternating voltages above 1 000 V
WITHDRAWN published on 30.6.2008
Selected format:-
WITHDRAWN published on 1.1.1978
Selected format:Printed and dyed cotton fabric
WITHDRAWN published on 25.12.1993
Selected format:Printed and dyed cotton fabric
WITHDRAWN published on 23.5.2008
Selected format:-
WITHDRAWN published on 1.1.1983
Selected format:Test methods for the small concrete hollow block
WITHDRAWN published on 6.5.1997
Selected format:Latest update: 2025-11-10 (Number of items: 2 243 715)
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