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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
Textile machinery and accessories - Beams for winding - Part 8: Definitions of run-out tolerances and methods of measurement
Standard published on 19.3.2009
Selected format:Textile machinery and accessories—Beams for winding—Part 9: Dyeing beams for textile fabrics fabrics
Standard published on 24.2.2016
Selected format:General quality requirements for soy milk powder
Standard published on 2.12.2025
Selected format:Product of geographical indication - Xuan paper
Standard published on 25.6.2008
Selected format:Phosphate rock and concentrate--Determination of acid insoluble content--Gravimetric method
Standard published on 20.12.1995
Selected format:Product of geographical indication - Huanghuadong jujube
Standard published on 5.5.2008
Selected format:Polypropylene (PP) piping systems for hot and cold water installations—Part 1: General
Standard published on 14.10.2017
Selected format:Polypropylene (PP) piping systems for hot and cold water installations—Part 2: Pipes
Standard published on 14.10.2017
Selected format:Polypropylene(PP) piping systems for hot and cold water installations—Part 3:Fittings
Standard published on 14.10.2017
Selected format:Thermoplastics pipes—Determination of pendulum impact strength by the Charpy method—Part 1:General test method
Standard published on 15.4.2022
Selected format:Latest update: 2026-09-11 (Number of items: 2 300 165)
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