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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
Sampling procedures for inspection of raw synthetic rubber
Standard published on 13.10.2016
Selected format:Rubberraw natural and raw synthetic--General guidance on storage
Standard published on 9.6.2003
Selected format:Potassium hydroxide for industrial use
Standard published on 7.9.2023
Selected format:Petroleum and natural gas industries—Drilling and production hoisting equipment
Standard published on 31.10.2025
Selected format:Hygienic standard for contact lens care solution
Standard published on 13.6.2003
Selected format:General principle on disinfection for infectious focus
Standard published on 2.6.2015
Selected format:
Disinfection specification for infectious diseases
Execute Date: november 2026
Standard published on 5.10.2025
Selected format:Testing method for thermo-electromotive force of precious metals and their alloys pair up with platinum or copper
Standard published on 31.3.2008
Selected format:Test method for carbon acceptor concentration in semi-insulating gallium arsenide single crystals by infrared absorption spectroscopy
Standard published on 10.12.2015
Selected format:General purpose metric screw threads—Profiles
Standard published on 30.5.2025
Selected format:Latest update: 2026-09-25 (Number of items: 2 302 725)
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