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Standards GB - Chinese national standards - Page 196
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 12496.15-1999
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Test methods of wooden activated carbon--Determination of sulphide
Standard published on 10.11.1999
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GB/T 12496.16-1999
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Test methods of wooden activated carbon--Determination of chloride content
Standard published on 10.11.1999
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GB/T 12496.17-1999
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Test methods of wooden activated carbon--Determination of sulphate
Standard published on 10.11.1999
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GB/T 12496.18-1999
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Test methods of wooden activated carbon--Determination of acid-soluble substance
Standard published on 10.11.1999
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GB/T 12496.19-2015
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Test methods of wooden activated carbon—Determination of iron content
Standard published on 3.7.2015
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GB/T 12496.2-1999
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Test methods of wooden activated carbon--Determination of particle size distribution
Standard published on 10.11.1999
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GB/T 12496.20-1999
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Test methods of wooden activated carbon--Determination of zine content
Standard published on 10.11.1999
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GB/T 12496.21-1999
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Test methods of wooden activated carbon--Determination of calcium and magnesium content
Standard published on 10.11.1999
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GB/T 12496.22-1999
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Test methods of wooden activated carbon--Determination of heavy metals
Standard published on 10.11.1999
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GB/T 12496.3-1999
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Test methods of wooden activated carbon--Determination of ash content
Standard published on 10.11.1999
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