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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
Measurement of fluid flow in closed conduits—Guidance to the selection, installation and use of Coriolis meters
WITHDRAWN published on 13.12.2006
Selected format:Measurement of conductive liquid flow in closed conduits—Flanged electromagnetic flow meters—Overall length
WITHDRAWN published on 13.12.2006
Selected format:-
WITHDRAWN published on 1.1.1980
Selected format:Bimetal strips
WITHDRAWN published on 30.8.1993
Selected format:Industrial-process control systems -Instruments with analogue inputs and two- or multi-state outputs - Part 1: Methods of evaluating performance
WITHDRAWN published on 13.12.2006
Selected format:Optical fiber diameter analyser
WITHDRAWN published on 13.12.2006
Selected format:Digital still cameras—Terminology
WITHDRAWN published on 13.12.2006
Selected format:Mounting requirements for liquefied natural gas vehicle special equipment
WITHDRAWN published on 29.12.2006
Selected format:Rooftop air conditioning unit
WITHDRAWN published on 25.12.2006
Selected format:-
WITHDRAWN published on 1.1.1980
Selected format:Latest update: 2025-12-29 (Number of items: 2 253 390)
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