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Standards GB - Chinese national standards - Page 6060
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 14540.2-1993
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Determination of boron content for compound fertilizers. Azomethine-H spectrophotometric method
WITHDRAWN published on 1.1.1993
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GB/T 14540.3-1993
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Determination of manganese content for compoumd fertilizers
WITHDRAWN published on 1.1.1993
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GB/T 14540.4-1993
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Determination of zinc content for compound fertilizers
WITHDRAWN published on 1.1.1993
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GB/T 14541-1993
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Guide for maintenance and supervision of inservice turbine mineral oil used for power plants
WITHDRAWN published on 11.7.1993
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GB/T 14541-2005
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Guide for maintenance and supervision of in-service mineral turbine oil used for power plants
WITHDRAWN published on 6.2.2005
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GB/T 14542-1993
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Guide for maintenance and supervision of transformer oil in service
WITHDRAWN published on 11.7.1993
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GB/T 14542-2005
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Guide for maintenance and supervision of transformer oil in service
WITHDRAWN published on 6.2.2005
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GB/T 14543-1993
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Principles for the visual design of graphical symbols for use on signs
WITHDRAWN published on 10.6.1993
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GB 14544-1993
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Regulation of technical safety for vinyl chloride
WITHDRAWN published on 19.7.1993
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GB 14545-1993
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Washing tools with limited quantity water for live working (Short water gun with long water column)
WITHDRAWN published on 31.7.1993
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