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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
General specification for radio frequency modulators of video tape recorders
WITHDRAWN published on 6.4.1995
Selected format:General specification for marine GPS receiver
WITHDRAWN published on 6.4.1995
Selected format:Methods of measurement for transmitter-receiver assembly set
WITHDRAWN published on 6.4.1995
Selected format:Standard test methods for minority carrier lifetime in bulk germanium and silicon by measurement of photoconductivity decay
WITHDRAWN published on 3.6.1997
Selected format:Test methods for minority carrier lifetime in bulk germanium and silicon by measurement of photoconduetivity decay
WITHDRAWN published on 30.10.2009
Selected format:Cast copper alloy integral flanges
WITHDRAWN published on 2.4.1995
Selected format:Copper alloy hubbed slip-on flanges for brazing or welding
WITHDRAWN published on 2.4.1995
Selected format:Loose plate steel flanges with copper alloy plate collar for brazing or welding
WITHDRAWN published on 2.4.1995
Selected format:Loose plate steel flanges with copper alloy welding neck collar
WITHDRAWN published on 2.4.1995
Selected format:Belt drives—Pulleys—Limiting values for adjustment of centres
WITHDRAWN published on 2.4.1995
Selected format:Latest update: 2024-05-17 (Number of items: 2 902 148)
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