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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
Standard practice for X-ray real-time examination of cylinders weld
WITHDRAWN published on 17.12.1999
Selected format:Standard practice for X-ray digital radioscopic examination of cylinder weld
WITHDRAWN published on 30.12.2011
Selected format:Valves for compression natural gas cylinders for vehicles
WITHDRAWN published on 17.12.1999
Selected format:Compressed natural gas cylinder valve for vehicle
WITHDRAWN published on 25.6.2009
Selected format:Upholstered furniture—Assessment of the resistance to ignition of the spring mattress and the sofa
WITHDRAWN published on 17.12.1999
Selected format:Upholstered furniture—Assessment of the resistance to ignition of mattress and sofa—Part 1:Smouldering cigarette
WITHDRAWN published on 16.6.2011
Selected format:Upholstered furniture—Assessment of the resistance to ignition of mattress and sofa—Part 2:Match flame equivalent
WITHDRAWN published on 16.6.2011
Selected format:Leather—Determination of the stitch tear resistance
WITHDRAWN published on 17.12.1999
Selected format:Quartz clocks for vehicles
WITHDRAWN published on 17.12.1999
Selected format:Standard test method for water reaction of aviation fuels
WITHDRAWN published on 18.12.2000
Selected format:Latest update: 2026-04-30 (Number of items: 2 275 280)
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