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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
Non-combustibility test method for building materials
Standard published on 26.9.2010
Selected format:
Non-combustibility test method of building materials
Execute Date: october 2026
Standard published on 31.3.2026
Selected format:Graphical symbols for use on electrical equipment - Part 1: Overview and classification
Standard published on 13.3.2009
Selected format:Graphical symbols for use on electrical equipment—Part 2Graphical symbols
Standard published on 28.12.2023
Selected format:Measurement method of smoke and dust emission from boilers
Standard published on 14.11.1991
Selected format:Anchor shackle
Standard published on 12.8.1994
Selected format: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:Latest update: 2026-06-28 (Number of items: 2 284 473)
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