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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 and natural gas industries—Steel pipes for use as casing or tubing for wells
WITHDRAWN published on 4.7.2005
Selected format:Petroleum and natural gas industries—Steel pipes for use as casing or tubing for wells
WITHDRAWN published on 30.12.2011
Selected format:Petroleum and natural gas industries—Steel pipes for use as casing or tubing for wells
WITHDRAWN published on 12.5.2017
Selected format:Petroleum and natural gas industries—Drilling and production equipment—Inspection, maintenance, repair and remanufacture of hoisting equipment
WITHDRAWN published on 4.7.2005
Selected format:Self-regulation heating belt
WITHDRAWN published on 13.7.2005
Selected format:Instrumentation for electric vehicles
WITHDRAWN published on 13.7.2005
Selected format:Ultraviolet(UV) disinfection equipment for municipal water and wastewater treatment
WITHDRAWN published on 15.7.2005
Selected format:General specification for industrial oil and gas burners
WITHDRAWN published on 26.7.2005
Selected format:Alternating current high-voltage circuit-breakers
WITHDRAWN published on 31.3.1989
Selected format:High-voltage alternating-current circuit-breakers
WITHDRAWN published on 5.6.2003
Selected format:Latest update: 2026-05-04 (Number of items: 2 275 493)
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