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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
Small craft—Hull identification—Coding system
WITHDRAWN published on 18.12.1996
Selected format:Small craft - Craft identification - Coding system
WITHDRAWN published on 14.2.2008
Selected format:General specification for monochrome universal NBTV cameras
WITHDRAWN published on 20.12.1996
Selected format:Measurement of emission rate of particle Method for large area proportional counter
WITHDRAWN published on 19.12.1996
Selected format:Plasticizers; Test method of heat-resistance
WITHDRAWN published on 23.2.1988
Selected format:Standard frequencies for centralized network control installations
WITHDRAWN published on 19.12.1996
Selected format:Standard test methods for thermocouple materials—Part 1:methods for measuring the thermoelectric force of noble metal thermocouple wires
WITHDRAWN published on 19.12.1996
Selected format:Standard test methods for thermocouple materials—Part 2:Methods for measuring the thermoelectric force of base metal thermocouple wires
WITHDRAWN published on 19.12.1996
Selected format:Design rules for mechanical components of PWR nuclear islands
WITHDRAWN published on 19.12.1996
Selected format:EDIFACT syntax implementation guidelines
WITHDRAWN published on 20.12.1996
Selected format:Latest update: 2026-01-30 (Number of items: 2 258 069)
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