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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
Method of test for gas proof of paint films
WITHDRAWN published on 15.9.1979
Selected format:Technical condition of coal for two-stage cyclic water gas gasifier
WITHDRAWN published on 8.12.1998
Selected format:Transmitters for use in industrial-process control systems Part 1:Methods of evaluating the performance
WITHDRAWN published on 11.12.1998
Selected format:Transmitters for use in industrial-process control systems—Part 1:Methods of evaluating the performance
WITHDRAWN published on 18.6.2008
Selected format:Transmitters for use in industrial-process control systems—Part 2:Guidance for inspection and routine testing
WITHDRAWN published on 11.12.1998
Selected format:Transmitters for use industrial-process control systems—Part 2:Methods for inspection and routine testing
WITHDRAWN published on 28.7.2008
Selected format:Transmitters for use in industrial-process control systems—Part 3:Methods for performance evaluation of intelligent transmitters
WITHDRAWN published on 12.11.2013
Selected format:Nickel-Chromium-Silicon/Nickel-Silicon—Magnesium thermocouple wires
WITHDRAWN published on 11.12.1998
Selected format:Unified numbering system for designations of iron,steel and alloy
WITHDRAWN published on 14.12.1998
Selected format:Refractory products—Sampling of raw materials and unshaped products
WITHDRAWN published on 14.12.1998
Selected format:Latest update: 2024-05-02 (Number of items: 2 896 910)
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