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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
Cylindrical cutters
Standard published on 11.7.2022
Selected format:Testing equipment for electrical energy meters
Standard published on 1.8.2001
Selected format:Alternating current bridge
Standard published on 31.3.1989
Selected format:Test methods of laser power meter in lower-range
Standard published on 31.12.2012
Selected format:Specifications for high temperature test chambers
Standard published on 30.6.2008
Selected format:Specifications for low air pressure test chambers
Standard published on 1.12.2010
Selected format:General specification of optical components for the scale and surface defects
Standard published on 30.9.2009
Selected format:Vacuum coating plant generic specification
Standard published on 21.11.2011
Selected format:Laboratory pH meter
Standard published on 18.5.2005
Selected format:Direct acting electrical measuring recorders
Standard published on 31.3.1989
Selected format:Latest update: 2025-12-26 (Number of items: 2 253 153)
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