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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
Boxes and enclosures for electrical accessories for household and similar fixed electrical installations—Part 24:Particular requirements for enclosures for housing protective devices and similar power consuming devices
WITHDRAWN published on 30.12.2008
Selected format:High-voltage/low-voltage prefabricated substations
WITHDRAWN published on 17.8.1998
Selected format:High-voltage/low-voltage prefabricated substation
WITHDRAWN published on 2.9.2010
Selected format:The guide for choice power transformers
WITHDRAWN published on 17.8.1998
Selected format:The guide for choice power transformers
WITHDRAWN published on 24.9.2008
Selected format:Road vehicles-Brake linings-Evaluation of friction material characteristics—Small sample bench test procedure
WITHDRAWN published on 19.8.1998
Selected format:Method of test for ashes content in paints by ignition
WITHDRAWN published on 15.9.1979
Selected format:Glass fiber chopped strand mat
WITHDRAWN published on 19.8.1998
Selected format:Principles for providing of monitoring and measuring instruments of energy in boiler heating network system
WITHDRAWN published on 19.8.1998
Selected format:Specification for pastes of precious metals
WITHDRAWN published on 19.8.1998
Selected format:Latest update: 2024-10-18 (Number of items: 2 205 605)
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