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GB - Chinese national standards - Page 7619

Standards GB - Chinese national standards - Page 7619

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 8220.2-1998 19.8.1998
GB/T 8220.2-1998 WITHDRAWN

Methods for chemical analysis bismuth—Determination of iron content—1,10-phenanthroline photometric method

WITHDRAWN published on 19.8.1998

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Preview GB/T 8220.3-1998 19.8.1998
GB/T 8220.3-1998 WITHDRAWN

Methods for chemical analysis of bismuth—Determination of antimony content—Melachite green photometric method

WITHDRAWN published on 19.8.1998

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Preview GB/T 8220.4-1998 19.8.1998
GB/T 8220.4-1998 WITHDRAWN

Methods for chemical analysis of bismuth—Determination of silver content—Flame atomic absorption spectrophotometric method

WITHDRAWN published on 19.8.1998

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Preview GB/T 8220.5-1998 19.8.1998
GB/T 8220.5-1998 WITHDRAWN

Methods for chemical analysis bismuth—Determination of zinc content—Solid-liquid extraction-flame atomic absorption spectrophotometric method

WITHDRAWN published on 19.8.1998

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Preview GB/T 8220.6-1998 19.8.1998
GB/T 8220.6-1998 WITHDRAWN

Methods for chemical analysis of bismuth—Determination of lead content—Electrothermal atomic absorption spectrometric method

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Preview GB/T 8220.7-1998 19.8.1998
GB/T 8220.7-1998 WITHDRAWN

Methods for chemical analysis of bismuth—Determination of arsenic content—Ion exchange separation-hydride generation-flame atomic absorption spectrophotometric method

WITHDRAWN published on 19.8.1998

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Preview GB/T 8220.8-1998 19.8.1998
GB/T 8220.8-1998 WITHDRAWN

Methods for chemical analysis of bismuth—Determination of chlorine content—Distillation-mercuric thiocyanate photometric method

WITHDRAWN published on 19.8.1998

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Preview GB/T 8220.9-1998 19.8.1998
GB/T 8220.9-1998 WITHDRAWN

Methods for chemical analysis of bismuth—Determination of tellurium content-Coprecipitation with arsenic-oscillopolarog raphic method

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Preview GB/T 8222-1987 29.9.1987
GB/T 8222-1987 WITHDRAWN

The general principles for electrcity balance of equipment of industrial enterprise

WITHDRAWN published on 29.9.1987

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Preview GB/T 8226-1987 4.10.1987
GB/T 8226-1987 WITHDRAWN

Highway transportation terminology

WITHDRAWN published on 4.10.1987

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