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Standards GB - Chinese national standards - Page 8235
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 5292.2-1985
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Methods for chemical analysis of melted welding fluxes--The potentiometric method for determination of manganese oxide content
WITHDRAWN published on 1.1.1985
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GB 5292.3-1985
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Methods for chemical analysis of melted welding fluxes--The permanganate photometric method for determination of manganese oxide content
WITHDRAWN published on 1.1.1985
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GB 5292.4-1985
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Methods for chemical analysis of melted welding fluxes--The EDTA volumetric method for determination of aluminium oxide content
WITHDRAWN published on 1.1.1985
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GB 5292.5-1985
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Methods for chemical analysis of melted welding fluxes--The sulfosalicylic acid photometric method for determination of iron oxide content
WITHDRAWN published on 1.1.1985
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GB 5292.6-1985
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Methods for chemical analysis of melted welding fluxes--The pyrolytic method for determination of calcium fluoride content
WITHDRAWN published on 1.1.1985
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GB 5292.7-1985
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Methods for chemical analysis of melted welding fluxes--The lead chlorofluoride-EDTA volumetric method for determination of calcium fluoride content
WITHDRAWN published on 1.1.1985
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GB 5292.8-1985
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Methods for chemical analysis of melted welding fluxes--The molybdenum blue photometric method for determination of phosphorus content
WITHDRAWN published on 1.1.1985
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GB 5292.9-1985
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Methods for chemical analysis of melted welding fluxes--The flame photometric method for determination of sodium oxide and potassium oxide content
WITHDRAWN published on 1.1.1985
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GB/T 5293-1999
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Carbon steel electrodes and fluxs for submerged arc welding
WITHDRAWN published on 3.9.1999
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GB/T 5294-1985
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Methods of personal dose monitoring for radiation workers
WITHDRAWN published on 1.1.1985
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