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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
Petroleum asphalts for heavy traffic road pavement
WITHDRAWN published on 28.8.2000
Selected format:Linear low density polyethylene resin
WITHDRAWN published on 23.8.1994
Selected format:Sectional specification for power transformers for use in electronic equipment for capability approval
WITHDRAWN published on 2.8.1994
Selected format:Sectional specification for power transformers for switched mode power supplies (SMPS) for use in electronic equipment for capability approval
WITHDRAWN published on 2.8.1994
Selected format:Separator—Types and basic parameters
WITHDRAWN published on 29.8.1994
Selected format:Measuring method for performance of wet dust collectors
WITHDRAWN published on 29.8.1994
Selected format:Measuring method for performances of wet dust collectors
WITHDRAWN published on 11.7.2005
Selected format:Face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of valves--Buttwelding valves
WITHDRAWN published on 29.8.1994
Selected format:Face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of valves--Wafer valves
WITHDRAWN published on 29.8.1994
Selected format:Face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of valves--Female screw valves
WITHDRAWN published on 29.8.1994
Selected format:Latest update: 2024-10-18 (Number of items: 2 205 605)
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