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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
Method of testing in hardness of wood
WITHDRAWN published on 23.2.2009
Selected format:Screw refigerant compressors
WITHDRAWN published on 25.11.2003
Selected format:Unitary air-conditioners for computer and data processing room
WITHDRAWN published on 25.11.2003
Selected format:Limited values of energy efficiency and evaluating values of energy conservation for single-capped fluorescent lamps
WITHDRAWN published on 27.11.2003
Selected format:Minimum allowable values of energy efficiency and evaluating values of energy conservation for single-capped fluorescent lamps
WITHDRAWN published on 18.12.2013
Selected format:Method of testing in cleavage stregth of wood
WITHDRAWN published on 3.5.1991
Selected format:Method of testing in cleavage strength of wood
WITHDRAWN published on 23.2.2009
Selected format:Terminology of salt-making industry
WITHDRAWN published on 11.12.2003
Selected format:Test methods of crystalline layered sodium disilicate--Qualitative analysis of delta-crystalline layered sodium disilicate--Method of X-ray diffractometer
WITHDRAWN published on 11.12.2003
Selected format:Test methods of crystalline layered sodium disilicate--Potassium fluosilicate volumetric methods for determination of silica dioxide content
WITHDRAWN published on 11.12.2003
Selected format:Latest update: 2024-03-25 (Number of items: 2 885 931)
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