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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
Natural rubber latex concentrate—Centrifuged or creamed,ammonia-preserved types—Specifications
WITHDRAWN published on 13.12.2016
Selected format:Natural rubber latex concentrate—Sampling
WITHDRAWN published on 19.11.1987
Selected format:Natural rubber latex concentrate—Sampling
WITHDRAWN published on 4.6.2008
Selected format:Natural rubber latex concentrate—Determination of coagulum content
WITHDRAWN published on 19.11.1987
Selected format:Natural rubber latex concentrate—Determination of coagulum content(sieve residue)
WITHDRAWN published on 4.6.2008
Selected format:Natural rubber latex concentrate—Determination of volatile fatty acid number
WITHDRAWN published on 20.7.2001
Selected format:Natural rubber latex concentrate—Determination of sludge content
WITHDRAWN published on 20.7.2001
Selected format:Natural rubber latex concentrate—Determination of sludge content
WITHDRAWN published on 15.5.2008
Selected format:Natural rubber latex concentrate—Determination of boric acid content
WITHDRAWN published on 20.7.2001
Selected format:Natural rubber latex—Determination of copper content
WITHDRAWN published on 19.11.1987
Selected format:Latest update: 2025-07-06 (Number of items: 2 207 474)
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