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Standards GB - Chinese national standards - Page 8738
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 7887-1987
WITHDRAWN
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Determination of total silica, total iron, total aluminium, total calcium, total magnesium, total potassium, total sodium, total phosphorus, total sulphur, total manganese, total copper, total zinc in forest plant and fores
WITHDRAWN published on 1.1.1987
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GB 7888-1987
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Determination of total nitrogen, total phosphorus, total potassium, total sodium, total calcium, total magnesium in forest plant and forest floor (method for wet digestion with sulphuric and perchloric acid)
WITHDRAWN published on 1.1.1987
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GB 7889-1987
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Determination of total chlorine in forest plant and forest floor
WITHDRAWN published on 1.1.1987
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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WITHDRAWN published on 1.1.1987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WITHDRAWN published on 1.1.1987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WITHDRAWN published on 1.1.1987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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