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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 strength and tightness of marine auxiliary boiler and pressure vessel
WITHDRAWN published on 16.3.2000
Selected format:Welding specifications for pressure parts of marine auxiliary boiler and pressure vessel
WITHDRAWN published on 16.3.2000
Selected format:Textiles—Test for color fastness to nitrogen oxides
WITHDRAWN published on 31.3.1989
Selected format:Textiles—Test for color fastness to burnt gas fumes
WITHDRAWN published on 31.3.1989
Selected format:Textiles—Test for color fastness to ozone in the atmosphere
WITHDRAWN published on 31.3.1989
Selected format:Textiles—Test for color fastness to vulcanizing:Hot air
WITHDRAWN published on 31.3.1989
Selected format:Textiles—Test for color fastness to vulcanizing:Sulphur monochloride
WITHDRAWN published on 31.3.1989
Selected format:Textiles—Test for color fastness to vulcanizing:Open steam
WITHDRAWN published on 31.3.1989
Selected format:Textiles—Test for color fastness of wool dyes to processes using chemical means for creasing, pleating and setting
WITHDRAWN published on 31.3.1989
Selected format:Textiles—Test for color fastness to acid chlorination of wool:Sodium dichloroisocyanurate
WITHDRAWN published on 31.3.1989
Selected format:Latest update: 2026-01-26 (Number of items: 2 257 479)
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