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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
Coal tar pitch
WITHDRAWN published on 1.1.1980
Selected format:Coal tar pitch
WITHDRAWN published on 9.5.1994
Selected format:General rules of science and technology research projects evaluation
WITHDRAWN published on 12.1.2009
Selected format:Pulps - Determination of acetone-soluble matter
WITHDRAWN published on 30.12.2008
Selected format:Pulp,paper and board—Determination of total chlorine and organically bound chlorine
WITHDRAWN published on 30.12.2008
Selected format:Superabsorbent polymer for diaper
WITHDRAWN published on 30.12.2008
Selected format:Testing of cores - Part 4: Measurement of dimension
WITHDRAWN published on 30.12.2008
Selected format:Method for preparation of coal tar pitchs specimens
WITHDRAWN published on 31.12.1980
Selected format:Diagnostic techniques for scrapie
WITHDRAWN published on 31.12.2008
Selected format:Protocol of fluorogenic RT-PCR for swine vesicular disease virus
WITHDRAWN published on 31.12.2008
Selected format:Latest update: 2026-06-09 (Number of items: 2 281 484)
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