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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
Footwear—Conversion of sizing systems
WITHDRAWN published on 28.12.2018
Selected format:Pure pyridine
WITHDRAWN published on 1.1.1989
Selected format:a-Methylpyridine
WITHDRAWN published on 1.1.1989
Selected format:b-Picoline fraction
WITHDRAWN published on 1.1.1989
Selected format:Method of determination for pyridine and homologues contents of the crude light pyridine
WITHDRAWN published on 1.1.1983
Selected format:Energy consumption limits for electric vehicles
WITHDRAWN published on 28.12.2018
Selected format:Method of determination for distillation range of pyridine products
WITHDRAWN published on 1.1.1983
Selected format:Method of determination for water content of pyridine products
WITHDRAWN published on 1.1.1983
Selected format:Coal tar
WITHDRAWN published on 1.1.1989
Selected format:Method of determination for density of coal tars
WITHDRAWN published on 1.1.1983
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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