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Standards GB - Chinese national standards - Page 5759
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 17418.1-1998
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Methods for analysis of noble metals in geochemical samples—General rules and regulations
WITHDRAWN published on 17.6.1998
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GB/T 17418.2-1998
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Methods for analysis of noble metals in geochemical samples—Determination of platinum and rhodium content-Preconcentration by thiourea-Catalytic polarographic method
WITHDRAWN published on 17.6.1998
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GB/T 17418.3-1998
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Methods for analysis of noble metals in geochemical samples—Determination of palladium content-Preconcentration by thiourea-Graphite furnace atomic absorption spectrophotometric method
WITHDRAWN published on 17.6.1998
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GB/T 17418.4-1998
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Methods for analysis of noble metals in geochemical samples—Determination of iridium content—Preconcentration by thiourea—Catalytic spectrophotometric method
WITHDRAWN published on 17.6.1998
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GB/T 17418.5-1998
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Methods for analysis of noble metals in geochemical samples—Determination of ruthenium and osmium content-Separation by distillation—Catalytic spectrophotometric method
WITHDRAWN published on 17.6.1998
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GB/T 17418.6-1998
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Methods for analysis of noble metals in geochemical samples—Determination of platinum palladium and gold content-Preconcentration by fire assay-Emission spectrographic method
WITHDRAWN published on 17.6.1998
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GB/T 17419-1998
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Foliar fertilizer with amino acid
WITHDRAWN published on 30.6.1998
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GB/T 1742-1979
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Method of test for adhesive strength of sizes
WITHDRAWN published on 15.9.1979
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GB/T 17420-1998
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Foliar microelement fertilizer
WITHDRAWN published on 30.6.1998
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GB/T 17421.1-1998
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Test code for machine tools--Part 1:Geometric accuracy of machines operating under no-loador finishing conditions
WITHDRAWN published on 2.7.1998
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