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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
Disc wheels for Trucks Dimensional character istics of attachment on hub
WITHDRAWN published on 8.10.2005
Selected format:Series of angles and slopes on wedges and prisms
WITHDRAWN published on 1.1.1983
Selected format:Geometrical product specifications(GPS) Series of angles and slopes on prisms
WITHDRAWN published on 15.9.2001
Selected format:Ammonium sulphate--Determination of nitrogen content--Titrimetric method after distillation
WITHDRAWN published on 1.1.1983
Selected format:Ammonium sulphate--Determination of nitrogen content--Formaldehyde method
WITHDRAWN published on 1.1.1983
Selected format:Ammonium sulphate--Determination of water content--Gravimetric method
WITHDRAWN published on 1.1.1983
Selected format:Ammonium sulphate--Determination of free acid content--Titrimetric method
WITHDRAWN published on 1.1.1983
Selected format:Ammonium sulphate--Determination of iron content--0-phenanthroline photometric method
WITHDRAWN published on 1.1.1983
Selected format:Ammonium sulphate--Determination of arsenic content--Silver diethyl dithiocarbamate photometric method
WITHDRAWN published on 1.1.1983
Selected format:Ammonium sulphate--Determination of arsenic content--Gutzeit method
WITHDRAWN published on 1.1.1983
Selected format:Latest update: 2026-09-22 (Number of items: 2 302 417)
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