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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
Paper base petroleum asphalt felt,asphalt paper
WITHDRAWN published on 31.3.1989
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WITHDRAWN published on 1.1.1982
Selected format:Methods for chemical analysis of tin—Determination of copper content
WITHDRAWN published on 28.8.2000
Selected format:Methods for chemical analysis of tinPart 1Determination of copper contentFlame atomic absorption spectrometric method
WITHDRAWN published on 17.12.2013
Selected format:Methods for chemical analysis of tin—Determination of sulphur content
WITHDRAWN published on 28.8.2000
Selected format:Methods for chemical analysis of tinPart 10Determination of cadmium contentFlame atomic absorption spectrometric method
WITHDRAWN published on 17.12.2013
Selected format:Methods for chemical analysis of tin—Determination of cadmium content
WITHDRAWN published on 28.8.2000
Selected format:Methods for chemical analysis of tin—Determination of iron content
WITHDRAWN published on 28.8.2000
Selected format:Methods for chemical analysis of tin—Determination of bismuth content
WITHDRAWN published on 28.8.2000
Selected format:Methods for chemical analysis of tin—Determination of lead content
WITHDRAWN published on 28.8.2000
Selected format:Latest update: 2026-01-25 (Number of items: 2 257 482)
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