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Standards GB - Chinese national standards - Page 5422
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 10554-1989
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Photographic grade boric acid
WITHDRAWN published on 1.1.1989
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GB 10555-1989
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Photographic grade sodium tetraborate, decahydrous (borax)
WITHDRAWN published on 1.1.1989
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GB 10556-1989
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Photographic grade sodium carbonate monohydrous
WITHDRAWN published on 1.1.1989
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GB 10559-1989
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Music wire
WITHDRAWN published on 1.1.1989
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GB/T 10560-1989
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High tensile steels for round link chains for mines—Technical requirements
WITHDRAWN published on 22.3.1989
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GB/T 10560-2008
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High tensile steels of round link chains for mines
WITHDRAWN published on 19.8.2008
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GB/T 10561-1989
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Steel—Determination of content of non-metallic inclusion—Micrographic method using standard diagrams
WITHDRAWN published on 22.3.1989
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GB/T 10561-2005
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Steel—Determination of content of nonmetallic inclusions—Micrographic method using standards diagrams
WITHDRAWN published on 13.5.2005
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GB/T 10562-1989
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Metallic material—Standard test method for the extra-low expansion coefficient—Light interferometer method
WITHDRAWN published on 22.3.1989
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GB 10563-1989
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Steel wire for medical sewing needle
WITHDRAWN published on 1.1.1989
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