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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 - Flexible pipe systems for subsea and marine riser applications
WITHDRAWN published on 15.12.2006
Selected format:Bladder type accumulators
WITHDRAWN published on 15.12.2006
Selected format:Minimum allowable values of energy efficiency and energy efficiency grades for domestic gas instantaneous water heater and gas fired heating-hot water combi-boilers
WITHDRAWN published on 12.12.2006
Selected format:Tin-zinc-lead-bronze strips
WITHDRAWN published on 11.11.1980
Selected format:Classification system and test methods for nonmetallic gasket materials—Part 1:Standard classification system for nonmetallic gasket materials
WITHDRAWN published on 7.12.2006
Selected format:Classification system and test methods for nonmetallic gasket materials—Part 3:Standard test method for fluid resistance of gasket materials
WITHDRAWN published on 7.12.2006
Selected format:Classification system and test methods for nonmetallic gasket materials—Part 5:Standard test method for creep relaxation of gasket materials
WITHDRAWN published on 7.12.2006
Selected format:Classification system and test methods for nonmetallic gasket materials—Part 6:Standard test method for adhesion of gasket materials to metal surfaces
WITHDRAWN published on 7.12.2006
Selected format:Plastics pipes and fittings—Equipment for fusion jointing polyethylene systems—Part 1:Butt fusion
WITHDRAWN published on 4.9.2006
Selected format:Plastics pipes and fittings—Equipment for fusion jointing polyethylene systems—Part 2:Electrofusion
WITHDRAWN published on 4.9.2006
Selected format:Latest update: 2024-09-28 (Number of items: 2 350 600)
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