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Standards GB - Chinese national standards - Page 7857
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 4833-1989
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WITHDRAWN published on 1.1.1989
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GB/T 4833-1997
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Multichannel pulse height analyzers—Main characteristics, technical requirements and test methods
WITHDRAWN published on 14.10.1997
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GB 4834-1984
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Direct-reading electroscope-type pocket expours meters
WITHDRAWN published on 1.1.1984
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GB/T 4834-1995
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Direct-reading electroscope-type radiation dosimetric meters
WITHDRAWN published on 1.1.1995
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GB/T 4834-2001
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Direct or indirect-reading capacitor-type pocket dosemeters
WITHDRAWN published on 16.11.2001
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GB/T 4835-1984
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Portable X or gamma radiation doserate meters and monitors for use in radiation protection
WITHDRAWN published on 27.12.1984
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GB/T 4835-2008
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Radiation protection instrumentation—Ambient and/or directional dose equivalent(rate)meters and/or monitors for beta,X and gamma radiation
WITHDRAWN published on 19.6.2008
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GB/T 4837-1984
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Typewriters--Layout of printing and function keys
WITHDRAWN published on 27.12.1984
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GB 4838-2000
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Packaging for emulsifiable concentrates of pesticides
WITHDRAWN published on 31.7.2000
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GB 4839-1998
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Common name for pesticides
WITHDRAWN published on 13.7.1998
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