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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
Test methods of air permeability,watertightness,wind load resistance performance for building external windows and doors
Standard published on 10.12.2019
Selected format:Hot-rolled quality carbon structural steel plates sheets and strips
Standard published on 28.2.2017
Selected format:
Hot rolled quality carbon structural steel plate, sheet and strip
Execute Date: february 2027
Standard published on 2.7.2026
Selected format:Textile machinery--Noise test code--Part 1:Common requirements
Standard published on 13.6.2002
Selected format:Textile machinery--Noise test code--Part 2:Spinning preparatory and spinning machinery
Standard published on 13.6.2002
Selected format:Textile machinery--Noise test code--Part 3:Non-woven machinery
Standard published on 13.6.2002
Selected format:Textile machinery--Noise test code--Part 4:Yarn processingcordage and rope manufacturing machinery
Standard published on 13.6.2002
Selected format:Textile machinery--Noise test code--Part 5:Weaving and knitting preparatory machinery
Standard published on 13.6.2002
Selected format:Textile machinery--Noise test code--Part 6:Fabric manufacturing machinery
Standard published on 13.6.2002
Selected format:Textile machinery--Noise test code--Part 7:Dyeing and finishing machinery
Standard published on 13.6.2002
Selected format:Latest update: 2026-08-04 (Number of items: 2 291 378)
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