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Standards GB - Chinese national standards - Page 6199
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 15249.2-1994
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Crude Gold—Determination of silver content—EDTA titrimetric method
WITHDRAWN published on 7.10.1994
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GB/T 15249.3-1994
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Crude Gold—Determination of copper content—Iodometric method
WITHDRAWN published on 7.10.1994
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GB/T 15249.4-1994
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Crude Gold—Determination of lead content—EDTA titrimetric method
WITHDRAWN published on 7.10.1994
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GB/T 15249.5-1994
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Crude Gold—Determination of mercury content—Cold atomic absorption spectrometric method
WITHDRAWN published on 7.10.1994
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GB/T 1525-1979
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Drawing paper
WITHDRAWN published on 5.3.1979
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GB/T 15250-1994
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Test method for bulk acoustic wave attenuation of piezoelectric lithium niobate crystals
WITHDRAWN published on 26.9.1994
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GB/T 15251-1994
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Rubber—Determination of free sulphur—Copper spiral method
WITHDRAWN published on 24.9.1994
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GB/T 15252-1994
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Rubber—Determination of sulfide sulfur content—Iodometric method
WITHDRAWN published on 24.9.1994
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GB/T 15253-1994
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Rubber—Determination of free Sulpher—Potentiometic titration method
WITHDRAWN published on 24.9.1994
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GB/T 15254-1994
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Rubber, vulcanized—Determination of adhesion to metal—180°Peel test method
WITHDRAWN published on 24.9.1994
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