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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
Polyamide plate based flat belt
WITHDRAWN published on 31.3.1989
Selected format:Polyamide plate based flat belt
WITHDRAWN published on 23.6.2003
Selected format:Lithium carbonate—Determination of lithium carbonate content—Acid-alkali titrimetric method
WITHDRAWN published on 31.3.1989
Selected format:Methods for chemical analysis of lithium carbonate,lithium hydroxide monohydrate and lithium chloride - Part 1: Determination of lithium carbonate content - Acid-alkali titrimetric method
WITHDRAWN published on 6.9.2013
Selected format:Lithium carbonate and lithium hydroxide monohydrate—Determination of chloride content—Mercurimetric method
WITHDRAWN published on 31.3.1989
Selected format:Lithium carbonate, lithium hydroxide monohydrate and lithium chloride—Determination of acid-insolubles—Gravimetric method
WITHDRAWN published on 31.3.1989
Selected format:Lithium hydroxide monohydrate—Determination of carbon dioxide content—Absorption titrimetric method
WITHDRAWN published on 31.3.1989
Selected format:Lithium carbonate and lithium hydroxide monohydrate—Determination of aluminum content—Chromazurol S-cetylpyridine bromide spectrophotometric method
WITHDRAWN published on 31.3.1989
Selected format:Lithium carbonate—Determination of arsenic content—Molybdenum blue spectrophotometric method
WITHDRAWN published on 31.3.1989
Selected format:Lithium carbonate—Determination of fluoride content—Ion selective electrode method
WITHDRAWN published on 31.3.1989
Selected format:Latest update: 2026-01-26 (Number of items: 2 257 479)
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