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Standards GB - Chinese national standards - Page 8538
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 717-1982
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WITHDRAWN published on 1.1.1982
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GB/T 717-1998
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Pig iron for steelmaking
WITHDRAWN published on 7.12.1998
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GB 7170-1987
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Alkaline secondary cell XY 20
WITHDRAWN published on 1.1.1987
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GB 7171-1987
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Standard reference material of orchard leaves
WITHDRAWN published on 1.1.1987
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GB/T 7171-1987
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Standard reference material of orchard leaves
WITHDRAWN published on 3.1.1987
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GB 7172-1987
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Method for the determination of soil water content
WITHDRAWN published on 1.1.1987
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GB 7173-1987
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Method for the determination of soil total nitrogen (semi-micro Kjeldahl method)
WITHDRAWN published on 1.1.1987
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GB 7174-1987
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Grinding machines for bearing outer races--Parameters
WITHDRAWN published on 1.1.1987
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GB 7175-1987
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Grinding machines for bearing inner races--Parameters
WITHDRAWN published on 1.1.1987
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GB 7176-1987
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Internal cylindrical grinding machines for bearing races--Parameters
WITHDRAWN published on 1.1.1987
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