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Standards GB - Chinese national standards - Page 6981
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
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GB/T 20725-2006
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Electron probe microanalysis guidelines for qualitative point analysis by wavelength dispersive X-ray spectrometry
WITHDRAWN published on 25.12.2006
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GB/T 20726-2006
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Instrumental specification for energy dispersive X-ray spectrometers with semiconductor detectors
WITHDRAWN published on 25.12.2006
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GB/T 20726-2015
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Microbeam analysis—Selected instrumental performance parameters for the specification and checking of energy dispersive X-ray spectrometers for use in electron probe microanalysis
WITHDRAWN published on 9.10.2015
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GB/T 20728-2006
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Measurement of fluid flow in closed conduits—Guidance to the selection, installation and use of Coriolis meters
WITHDRAWN published on 13.12.2006
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GB/T 20729-2006
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Measurement of conductive liquid flow in closed conduits—Flanged electromagnetic flow meters—Overall length
WITHDRAWN published on 13.12.2006
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GB 2073-1980
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WITHDRAWN published on 1.1.1980
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GB/T 2073-1993
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Bimetal strips
WITHDRAWN published on 30.8.1993
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GB/T 20730.1-2006
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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
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GB/T 20732-2006
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Optical fiber diameter analyser
WITHDRAWN published on 13.12.2006
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GB/T 20733-2006
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Digital still cameras—Terminology
WITHDRAWN published on 13.12.2006
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