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Standards GB - Chinese national standards - Page 8831
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 9474.3-1988
WITHDRAWN
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Method of measurement for light transmissivity (t546) of color pictrure tube glass panel
WITHDRAWN published on 1.1.1988
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GB 9474.4-1988
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Analysis of cerium oxide in color picture tube glass
WITHDRAWN published on 1.1.1988
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GB 9474.5-1988
WITHDRAWN
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Analysis of chromium oxide (Cr2O3) in color picture tube glass
WITHDRAWN published on 1.1.1988
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GB 9474.6-1988
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Analysis of chlorine (Cl)in color picture tube glass
WITHDRAWN published on 1.1.1988
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GB 9474.7-1988
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Analysis of sulfur (S) in color picture tube glass
WITHDRAWN published on 1.1.1988
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GB/T 9474.8-1988
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Method of measurement for light transmissivity ( 546) of color pictrure tube glass panel
WITHDRAWN published on 25.6.1988
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GB 9475-1988
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Test method for granulometric distribution of alundum powder for vacuum tubes by density balance
WITHDRAWN published on 1.1.1988
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GB 9476-1988
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WITHDRAWN published on 1.1.1988
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GB 9477-1988
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Small submersible pumps--Types and basic parameters
WITHDRAWN published on 1.1.1988
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GB/T 9478-1988
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Test methods of grain drills
WITHDRAWN published on 25.6.1988
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