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GB - Chinese national standards - Page 7730

Standards GB - Chinese national standards - Page 7730

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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Preview GB/T 3884.7-2000 16.2.2000
GB/T 3884.7-2000 WITHDRAWN

Methods for chemical analysis of copper concentrates—Determination of lead content

WITHDRAWN published on 16.2.2000

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Preview GB/T 3884.7-2012 31.12.2012
GB/T 3884.7-2012 WITHDRAWN

Methods for chemical analysis of copper concentrates - Part 7: Determination of lead content - Na2EDTA titration method

WITHDRAWN published on 31.12.2012

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Preview GB/T 3884.8-2000 16.2.2000
GB/T 3884.8-2000 WITHDRAWN

Methods for chemical analysis of copper concentrates—Determination of zinc content

WITHDRAWN published on 16.2.2000

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Preview GB/T 3884.8-2012 31.12.2012
GB/T 3884.8-2012 WITHDRAWN

Methods for chemical analysis of copper concentrates - Part 8: Determination of zinc content - Na2EDTA titration method

WITHDRAWN published on 31.12.2012

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Preview GB/T 3884.9-2000 16.2.2000
GB/T 3884.9-2000 WITHDRAWN

Methods for chemical analysis of copper concentrates—Determination of arsenic and bismuth contents

WITHDRAWN published on 16.2.2000

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Preview GB/T 3884.9-2012 31.12.2012
GB/T 3884.9-2012 WITHDRAWN

Methods for chemical analysis of copper concentrates - Part 9: Determination of arsenic and bismuth contents - Hydride generation- atomic fluorescence spectrometry method The potassium bromate titration method and The silver diethyl dithiocarbamate photometric mothod

WITHDRAWN published on 31.12.2012

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Preview GB/T 3885.1-1983 19.10.1983
GB/T 3885.1-1983 WITHDRAWN

Methods for chemical analysis of spodumenite and lepidolite concentrates--The atomic absorption spectrophotometric method for determination of lithium oxide sodium oxide and potassium oxide contents

WITHDRAWN published on 19.10.1983

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Preview GB/T 3885.10-1983 19.10.1983
GB/T 3885.10-1983 WITHDRAWN

Methodsfor chemical analysis of spodumenite and lepidolite concentrates--The ion selective electrode method for the determination of fluorine content in lepidolite concentrates

WITHDRAWN published on 19.10.1983

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Preview GB/T 3885.11-1983 19.10.1983
GB/T 3885.11-1983 WITHDRAWN

Methods for chemical analysis of spodumenite and lepidolite concentrates--The persulfate oxidation photometric method for the determination of manganous oxide content

WITHDRAWN published on 19.10.1983

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Preview GB/T 3885.12-1983 19.10.1983
GB/T 3885.12-1983 WITHDRAWN

Methods for chemical analysis of spodumenite and lepidolite concentrates--The gravimetric method for the determination of loss on ignition

WITHDRAWN published on 19.10.1983

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