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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
Plastics - Determination of the brittleness temperature by impact
Standard published on 14.8.2008
Selected format:Plastics - Compression moulding of test specimens of thermosetting materials
Standard published on 4.8.2008
Selected format:Plastics—Phenol formaldehyde mouldings—Detection of free ammonia
Standard published on 14.6.2016
Selected format:Plastics—Phenol formaldehyde mouldings—Determination of free ammonia and ammonium compounds—Colorimetric comparison method
Standard published on 14.6.2016
Selected format:Methods for samping ion exchange resins
Standard published on 6.9.2013
Selected format:Methods of pretreating ion exchange resins
Standard published on 6.9.2013
Selected format:Plastics - Test method for wear by rolling
Standard published on 19.8.2008
Selected format:Technical requirements for anchors
Standard published on 28.3.1996
Selected format:Test methods for mineral wool and its products
Standard published on 29.12.2017
Selected format:Metallic materials—Dynamic tear test method
Standard published on 6.8.2023
Selected format:Latest update: 2026-08-14 (Number of items: 2 293 479)
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