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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
Medical electrical equipment—Particular requirements for the safety of ultrasonic medical diagnostic and monitoring equipment
WITHDRAWN published on 3.6.1997
Selected format:Medical electrical equipment—Part 2-37:Particular requirements for the safety of ultrasonic medical diagnostic and monitoring equipment
WITHDRAWN published on 24.3.2008
Selected format:Rubber and plastics internal mixer
WITHDRAWN published on 26.9.2000
Selected format:Thread rolling cylindrical dies
WITHDRAWN published on 20.12.1994
Selected format:Petroleum and natural gas industries—Steel pipe for pipeline transportation systems
WITHDRAWN published on 30.12.2011
Selected format:Petroleum and natural gas industries—Steel pipe for pipeline transportation systems
WITHDRAWN published on 12.5.2017
Selected format:Petroleum and natural gas industries—Steel pipe for pipelines—Technical delivery conditions—Part 1:Pipes of requirements class A
WITHDRAWN published on 3.11.1997
Selected format:Petroleum and natural gas industries—Steel pipe for pipelines—Technical delivery conditions—Part 2:Pipes of requirement class B
WITHDRAWN published on 1.11.1999
Selected format:Petroleum and natural gas industries—Steel pipe for pipelines—Technical delivery conditions—Part 3:Pipes of requirements class C
WITHDRAWN published on 4.7.2005
Selected format:Unrecorded magnetic tapes for instrumentation applications—Physical properties and test methods
WITHDRAWN published on 26.9.1988
Selected format:Latest update: 2025-05-30 (Number of items: 2 202 074)
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