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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
Marine forged steel male thread stop and check valves
WITHDRAWN published on 15.12.1983
Selected format:Identification code for ships engaged in international voyage
WITHDRAWN published on 5.7.1990
Selected format:Sampling method of the jute and kenaf fibres
WITHDRAWN published on 10.7.1990
Selected format:Test method for breaking strength of jute and kenaf fibres
WITHDRAWN published on 10.7.1990
Selected format:Test method for linear density of jute and kenaf fibres—Cut middles method
WITHDRAWN published on 10.7.1990
Selected format:Test method for softness of jute and kenaf fibres— Twist tester method
WITHDRAWN published on 10.7.1990
Selected format:Test method for moisture regain in jute and kenaf fibres by oven drying
WITHDRAWN published on 10.7.1990
Selected format:Test method for percentage of trash content in jute and kenaf fibres
WITHDRAWN published on 10.7.1990
Selected format:Raw hair and underfleece of yak
WITHDRAWN published on 10.7.1990
Selected format:Yak wool
WITHDRAWN published on 21.6.2007
Selected format:Latest update: 2025-12-29 (Number of items: 2 253 390)
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