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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
General specifications for sensitometry of silver halide photographic materials--Part 1:Sensitometric exposure conditions of films to be exposured for incandescent tungsten and daylight
Standard published on 5.5.1994
Selected format:Wrought superalloy—Seamless tube
Standard published on 29.8.2025
Selected format:Compound fertilizer
Standard published on 19.11.2020
Selected format:Test methods of colloidal graphite for kinescope
Standard published on 20.8.2008
Selected format:Black polyethylene compounds for wire and cable
Standard published on 15.10.2009
Selected format:Stainless steel pressure cooker
Standard published on 30.11.2004
Selected format:Stainless steel cutlery--Nomenclature
Standard published on 15.3.1994
Selected format:Stainless steel cutlery
Standard published on 13.12.2016
Selected format:Oil of star anise
Standard published on 28.8.2008
Selected format:Terminology of food canning machinery
Standard published on 28.8.2008
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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