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Standards GB - Chinese national standards - Page 5702
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 12374-1990
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Standard method for examination of nitrate in air of residential areas—Reduction of the cadmium column—spectrophotometry of N-(1-naphthyl) ethylene diamine hydrochloride
WITHDRAWN published on 22.3.1990
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GB/T 12375-1990
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Analytical method of tritium in water
WITHDRAWN published on 9.6.1990
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GB/T 12376-1990
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Analytical method of polonium-210 in water--Method of preparing sample by electroplating
WITHDRAWN published on 9.6.1990
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GB/T 12377-1990
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Analytical method of microquantity uranium in air by laser-fluoremetry
WITHDRAWN published on 9.6.1990
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GB/T 12378-1990
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Analytical method of microquantity uranium in air by spectropho to fluoremetry after extraction with TBP
WITHDRAWN published on 9.6.1990
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GB/T 1238-1976
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WITHDRAWN published on 1.1.1976
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GB 12380.1-1990
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WITHDRAWN published on 1.1.1990
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GB 12380.2-1990
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WITHDRAWN published on 1.1.1990
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GB 12380.3-1990
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WITHDRAWN published on 1.1.1990
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GB 12380.4-1990
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WITHDRAWN published on 1.1.1990
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