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GB - Chinese national standards - Page 7564

Standards GB - Chinese national standards - Page 7564

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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Publication year
Preview GB/T 7739.1-1987 12.5.1987
GB/T 7739.1-1987 WITHDRAWN

Methods for chemical analysis of gold concentrates--The fireassaying method for the determination of gold and silver contents

WITHDRAWN published on 12.5.1987

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Preview GB/T 7739.1-2007 27.4.2007
GB/T 7739.1-2007 WITHDRAWN

Methods for chemical analysis of gold concentrates—Part 1:Determination of gold and silver contents

WITHDRAWN published on 27.4.2007

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Preview GB/T 7739.11-2007 29.4.2007
GB/T 7739.11-2007 WITHDRAWN

Methods for chemical analysis of gold concentrates—Part 11:Determination of arsenic and bismuth contents

WITHDRAWN published on 29.4.2007

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Preview GB/T 7739.2-1987 12.5.1987
GB/T 7739.2-1987 WITHDRAWN

Methods for chemical analysis of gold concentrates--The flame atomic absorption spectrophotometric methods for the determination of silver content

WITHDRAWN published on 12.5.1987

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in 2 working days
Preview GB/T 7739.2-2007 27.4.2007
GB/T 7739.2-2007 WITHDRAWN

Methods for chemical analysis of gold concentrates—Part 2:Determination of silver contents

WITHDRAWN published on 27.4.2007

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Preview GB/T 7739.3-1987 12.5.1987
GB/T 7739.3-1987 WITHDRAWN

Methods for chemical analysis of gold concentrates--The silver diethyldithiocarbamate spectrophotometric method for the determination of arsenic content

WITHDRAWN published on 12.5.1987

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Preview GB/T 7739.3-2007 27.4.2007
GB/T 7739.3-2007 WITHDRAWN

Methods for chemical analysis of gold concentrates—Part 3:Determination of arsenic contents

WITHDRAWN published on 27.4.2007

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in 3 working days
Preview GB/T 7739.4-1987 12.5.1987
GB/T 7739.4-1987 WITHDRAWN

Methods for chemical analysis of gold concentrates--The iodometric method for the determination of arsenic content

WITHDRAWN published on 12.5.1987

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Preview GB/T 7739.4-2007 27.4.2007
GB/T 7739.4-2007 WITHDRAWN

Methods for chemical analysis of gold concentrates—Part 4:Determination of copper contents

WITHDRAWN published on 27.4.2007

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Preview GB/T 7739.5-2007 27.4.2007
GB/T 7739.5-2007 WITHDRAWN

Methods for chemical analysis of gold concentrates—Part 5:Determination of lead contents

WITHDRAWN published on 27.4.2007

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