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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
Pulps paper and board--Determination of calcium and magnesium
WITHDRAWN published on 29.3.1988
Selected format:Paperboaed and pulp - Determination of calcium and magnesium
WITHDRAWN published on 4.1.2008
Selected format:Pulps—Determination of saleable mass in lots—Part 1:Pulp baled in sheet form
WITHDRAWN published on 11.4.1988
Selected format:Pulps—Determination of saleable mass in lots—Part 2:Pulps(such as flash-dried pulp)baled in slabs
WITHDRAWN published on 1.4.1988
Selected format:Plastic woven sack
WITHDRAWN published on 29.9.1998
Selected format:Composite plastic woven sack
WITHDRAWN published on 29.9.1998
Selected format:Polyvinyl chloride artificial leather
WITHDRAWN published on 16.11.1994
Selected format:Polyurethane dry-processing artificial leather
WITHDRAWN published on 8.12.1995
Selected format:Hygienic specifications of cannery
WITHDRAWN published on 14.4.1988
Selected format:Hygienic specifications of liquor factory
WITHDRAWN published on 14.4.1988
Selected format:Latest update: 2025-08-27 (Number of items: 2 213 396)
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