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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 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WITHDRAWN published on 30.12.2011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WITHDRAWN published on 12.5.2017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WITHDRAWN published on 3.11.1997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WITHDRAWN published on 1.11.1999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WITHDRAWN published on 4.7.2005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WITHDRAWN published on 26.9.1988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:Thread rolling flat dies
WITHDRAWN published on 26.12.1994
Selected format:Fluorescent lights in ships--General specification
WITHDRAWN published on 8.8.1988
Selected format:Chemical reagent General rules for the molecular absorption spectrophotometry(ultraviolet and visible)
WITHDRAWN published on 5.9.1988
Selected format:Chemical reagent--General rules for the gas chrom atography
WITHDRAWN published on 5.9.1988
Selected format:Latest update: 2024-09-03 (Number of items: 2 346 077)
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