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Standards GB - Chinese national standards - Page 8737
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 9000.17-1988
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Determination of manganese dioxide in electronic glass by the potassium periodate oxidation method
WITHDRAWN published on 1.1.1988
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GB 9000.2-1988
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Determination of silica (SiO2) in electronic glass
WITHDRAWN published on 1.1.1988
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GB 9000.3-1988
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Determination of boron oxide (B2O3) in electronic glass
WITHDRAWN published on 1.1.1988
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GB 9000.4-1988
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Determination of fluorine in electronic glass by specific ion electrode measurement
WITHDRAWN published on 1.1.1988
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GB 9000.5-1988
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Determination of lead oxide in electronic glass
WITHDRAWN published on 1.1.1988
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GB 9000.6-1988
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Determination of baryta (BaO) in electronic glass
WITHDRAWN published on 1.1.1988
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GB 9000.7-1988
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Determination of alumina (A12O3) in electronic glass by EDTA complexicretric titration
WITHDRAWN published on 1.1.1988
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GB 9000.8-1988
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Determination of alumina (Al2O3) and zine oxide (ZnO) in electronic glass by EDTA complexiometric titration
WITHDRAWN published on 1.1.1988
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GB 9000.9-1988
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Determination of K2O Na2O and Li2O electronic glass by emission spectroscopy
WITHDRAWN published on 1.1.1988
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GB/T 9001-1988
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Method of measurement on audio amplifier
WITHDRAWN published on 14.1.1988
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