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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
Test methods for large transport packages
WITHDRAWN published on 7.9.1999
Selected format:Pulp--Determination of stock concentration--Rapid method
WITHDRAWN published on 28.9.1985
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WITHDRAWN published on 1.1.1981
Selected format:(CHINESE NATIONAL STANDARD)
WITHDRAWN published on 1.1.1983
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WITHDRAWN published on 1.1.1983
Selected format:Test methods for oil-resisting asbestos-rubber sheets
WITHDRAWN published on 14.2.1999
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WITHDRAWN published on 1.1.1985
Selected format:Pulp--Determination of alkali solubility
WITHDRAWN published on 28.9.1985
Selected format:Pulps—Determination of alkali solubility
WITHDRAWN published on 15.3.2004
Selected format:Paper and board--Determination of air permeance--Gurley method
WITHDRAWN published on 28.9.1985
Selected format:Latest update: 2026-06-10 (Number of items: 2 281 585)
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