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Standards GB - Chinese national standards - Page 7544
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 30858-2014
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Polished mono-crystalline sapphire substrate product
WITHDRAWN published on 24.7.2014
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GB/T 3086-1982
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Specification for high carbon chromium stainless bearing steels
WITHDRAWN published on 10.5.1982
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GB/T 3086-2008
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High carbon chromium stainless bearing steels
WITHDRAWN published on 11.9.2008
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GB/T 30866-2014
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Test method for measuring diameter of monocrystalline silicon carbide wafers
WITHDRAWN published on 24.7.2014
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GB/T 30867-2014
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Test method for measuring thickness and total thickness variation of monocrystalline silicon carbide wafers
WITHDRAWN published on 24.7.2014
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GB/T 30868-2014
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Test method for measuring micropipe density of monocrystalline silicon carbide wafersChemically etching
WITHDRAWN published on 24.7.2014
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GB 3087-1999
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Seamless steel tubes for low and medium pressure
WITHDRAWN published on 1.11.1999
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GB/T 3087-2008
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Seamless steel tubes for low and medium pressure boiler
WITHDRAWN published on 24.10.2008
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GB 30871-2014
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Safety code of special work in chemical manufactory
WITHDRAWN published on 24.7.2014
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GB/T 30878-2014
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Information technology—Universal multiple-octet coded character set(basic multilingual plane)—17×18 dot matrix font of Chinese ideogram
WITHDRAWN published on 3.9.2014
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