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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
The Chinese seismic intensity scale
WITHDRAWN published on 13.11.2008
Selected format:Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
WITHDRAWN published on 26.4.1999
Selected format:Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
WITHDRAWN published on 12.11.2007
Selected format:Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
WITHDRAWN published on 29.12.2017
Selected format:Specification for drilling equipment
WITHDRAWN published on 17.5.1999
Selected format:Petroleum and natural gas industries—Drilling and well servicing equipment
WITHDRAWN published on 28.8.2008
Selected format:Petroleum and natural gas industries—Drilling and well servicing equipment
WITHDRAWN published on 31.12.2015
Selected format:Petroleum and natural gas industries—Care and use of casing and tubing
WITHDRAWN published on 17.5.1999
Selected format:Natural gas—Calculation of compression factor—Part 1:Introduction and guidelines
WITHDRAWN published on 17.5.1999
Selected format:Natural gas—Calculation of compression factor—Part 2:Calculation using molar-composition analysis
WITHDRAWN published on 17.5.1999
Selected format:Latest update: 2026-04-28 (Number of items: 2 274 955)
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