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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 method for textile fibre length distribution parameters--Electric condenser method
Standard published on 4.11.1992
Selected format:Cotton fibres--Determination of breaking tenacity of flat bundles
Standard published on 4.11.1992
Selected format:Artificial daylighting illumination for cotton classing rooms
Standard published on 12.10.2022
Selected format:Cold rolled ribbed steel bars
Standard published on 25.6.2024
Selected format:Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester
Standard published on 12.10.2022
Selected format:Cold rolled low carbon steel sheet and strip for vitreous enamelling
Standard published on 1.8.2025
Selected format:Steel pipes with a longitudinal electricresistanceweld
Standard published on 29.8.2016
Selected format:Pyrometric reference cones
Standard published on 7.9.2017
Selected format:General specifications for X-ray tube
Standard published on 17.3.2023
Selected format:Methods of the calculation for load capacity of cylindrical gear with double-circular-arc tooth profile
Standard published on 30.11.1992
Selected format:Latest update: 2026-04-08 (Number of items: 2 271 105)
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