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Standards GB - Chinese national standards - Page 8666
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 7890-1987
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Determination of total boron in forest plant and forest floor
WITHDRAWN published on 1.1.1987
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GB 7891-1987
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Determination of total molybdenum in forest plant and forest floor
WITHDRAWN published on 1.1.1987
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GB 7892-1987
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Chemical analysis methods of forest soil water
WITHDRAWN published on 1.1.1987
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GB 7893-1987
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Round aluminium and aluminium alloy wire for electrical purposes--Round aluminium alloy wire of the aluminium-magesium-silicon type
WITHDRAWN published on 1.1.1987
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GB/T 7894-2001
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Fundamental technical specifications for hydro generators
WITHDRAWN published on 12.7.2001
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GB/T 7894-2009
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Fundamental technical specifications for hydro generators
WITHDRAWN published on 30.11.2009
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GB/T 7895-1987
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Optical grade synthetic quartz crystal
WITHDRAWN published on 5.6.1987
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GB/T 7896-1987
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Test method for optical grade synthetic quartz crystal
WITHDRAWN published on 5.6.1987
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GB/T 7897.1-1987
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Test method of mechanical properties of mortar for ferrocement General principle
WITHDRAWN published on 5.6.1987
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GB/T 7897.2-1987
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Test method of mechanical properties of mortar for ferrocement Test of bending strength
WITHDRAWN published on 5.6.1987
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