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Standards GB - Chinese national standards - Page 7251
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 25915.8-2010
WITHDRAWN
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Cleanrooms and associated controlled environments—Part 8:Classification of airborne molecular contamination
WITHDRAWN published on 14.1.2011
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GB/T 25917-2010
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Axial force-applied fatigue testing machines dynamic force calibration
WITHDRAWN published on 14.1.2011
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GB/T 2592.1-1981
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Thallium--Determination of copper content--Neocuproine-chloroform extraction photometric method
WITHDRAWN published on 7.6.1981
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GB/T 2592.10-1981
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Thallium--Determination of thallium content--EDTA volumetric method
WITHDRAWN published on 7.6.1981
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GB/T 2592.2-1981
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Thallium--Determination of iron content--110-Phenanthroline photometric method
WITHDRAWN published on 7.6.1981
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GB/T 2592.3-1981
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Thallium--Determinationof mercury content--Dithizone-carbon tetrachloride extraction photometric method
WITHDRAWN published on 7.6.1981
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GB/T 2592.4-1981
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Thallium--Determination of zinc content--Dithizone extraction photometric method
WITHDRAWN published on 7.6.1981
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GB/T 2592.5-1981
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Thallium--Determination of cadmium content--Dithizone extraction photometric method
WITHDRAWN published on 7.6.1981
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GB/T 2592.6-1981
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Thallium--Determination of lead content--Dithizone extraction photometric method
WITHDRAWN published on 7.6.1981
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GB/T 2592.7-1981
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Thallium--Determination of aluminium content--Chromazurol S photometric method
WITHDRAWN published on 7.6.1981
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