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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
Marine low pressure bronze male threaded stop check valves
WITHDRAWN published on 1.6.1984
Selected format:Hot-rolled wire rod for quenched and tempered springs
WITHDRAWN published on 9.6.2004
Selected format:Technical requirement for the observational environment of seismic stations--Part 1:Seismometry
WITHDRAWN published on 21.6.2004
Selected format:Packaging material—Volatile corrosion inhibiting film
WITHDRAWN published on 7.6.2004
Selected format:Periodic inspection and evaluation of steel gas cylinders for the on board storage of compressed natural gas as a fuel
WITHDRAWN published on 7.6.2004
Selected format:Plywood for container flooring
WITHDRAWN published on 22.6.2004
Selected format:Determination of ochratoxin A in feeds
WITHDRAWN published on 10.6.2004
Selected format:Determination of the weldign seam iron element contenting chromium, nickel austenitic stainless steel
WITHDRAWN published on 15.5.1980
Selected format:Determination of zearalenone in feeds
WITHDRAWN published on 10.6.2004
Selected format:Soybean meal (solvent)for feedstuff
WITHDRAWN published on 9.6.2004
Selected format:Latest update: 2026-06-11 (Number of items: 2 281 927)
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