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Standards GB - Chinese national standards - Page 896
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 1819.3-2004
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Methods for chemical analysis of tin concentrates--Determination of iron content--The cerium sulfate titrimetric method
Standard published on 5.2.2004
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GB/T 1819.4-2004
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Methodsfor chemical analysis of tin concentrates--Determination of lead content--Flameatomic absorption spectrometric method and EDTA titrimetric method
Standard published on 5.2.2004
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GB/T 1819.5-2004
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Methods for chemical analysis of tin concentrates--Determination of arsenic content--The molybdoantimonyarsenate blue spectrophotometric method and the distillation-iodimetric titrimetric method
Standard published on 5.2.2004
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GB/T 1819.6-2004
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Methods for chemical analysis of tin concentrates--Determination of antimony content--The malachite green spectrometric method and the flame atomic absorption spectrometric method
Standard published on 5.2.2004
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GB/T 1819.7-2017
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Methods for chemical analysis of tin concentrates—Part 7:Determination of bismuth content—Flame atomic absorption spectrometric method
Standard published on 29.9.2017
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GB/T 1819.8-2017
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Methods for chemical analysis of tin concentrates—Part 8Determination of zinc content—Flame atomic absorption spectrometric method
Standard published on 29.9.2017
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GB/T 1819.9-2017
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Methods for chemical analysis of tin concentrates—Part 9Determination of tungsten trioxide content—The thiocyanate spectrophotometric method
Standard published on 29.9.2017
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GB/T 18190-2017
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Oceanological terminology—Marine geology
Standard published on 1.11.2017
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GB 18191-2008
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Packing containers - Plastic drum for packages of dangerous goods
Standard published on 18.9.2008
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GB/T 18192-2008
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Paper based laminated material using for aseptic packaging of liquid food
Standard published on 25.6.2008
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