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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
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WITHDRAWN published on 1.1.1987
Selected format:Raw natural rubber--Determination of volatile matter content
WITHDRAWN published on 27.7.1987
Selected format:Rubber, raw natural and rubber latex, natural—Determination of nitrogen content
WITHDRAWN published on 11.8.1999
Selected format:Rubber,raw natural and rubber latex,natural - Determination of nitrogen content
WITHDRAWN published on 15.5.2008
Selected format:Raw natural rubber—Smoked sheets
WITHDRAWN published on 10.7.1987
Selected format:Raw natural rubber—White crepes and pale crepes
WITHDRAWN published on 10.7.1987
Selected format:General technic requirements for machinery for primary processing of natural rubber
WITHDRAWN published on 1.1.1987
Selected format:Types and basic parameters for hand pump
WITHDRAWN published on 1.1.1987
Selected format:Technical requirement for hand pump
WITHDRAWN published on 1.1.1987
Selected format:Equipment for working the soil--Concave disks
WITHDRAWN published on 1.1.1987
Selected format:Latest update: 2026-06-10 (Number of items: 2 281 585)
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