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Standards GB - Chinese national standards - Page 8668
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 7506-1987
WITHDRAWN
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Series and products of semiconductor integrated circuit for microcomputer--Products of 8086 family
WITHDRAWN published on 1.1.1987
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GB/T 7507-1987
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Method of function verification of cu8080A 8-Bit microprocessor for semiconductor integrated circuit microcomputer
WITHDRAWN published on 1.1.1987
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GB/T 7508-1987
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Method of function verification of cu6821 peripheral interface adapter for semiconductor integrated circuit microcomputer
WITHDRAWN published on 1.1.1987
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GB 751-1981
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Test method for drying shrinkage of cement mortar
WITHDRAWN published on 1.1.1981
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GB 7510-1987
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Detail specification for electronic components--Semiconductor integrated circuit-CDA7520 types 10 bit D/A converter
WITHDRAWN published on 1.1.1987
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GB 7511-1987
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Detail specification for electronic components--Semiconductor integrated circuit-CE10131 ECL dual type D master-slave flip-flop
WITHDRAWN published on 1.1.1987
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GB 7512-1998
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Valves for liquefied petroleum gas cylinders
WITHDRAWN published on 20.3.1998
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GB/T 7512-2006
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Valves for liquefied petroleum gas cylinders
WITHDRAWN published on 19.7.2006
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GB/T 7512-2017
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Valves for liquefied petroleum gas cylinders
WITHDRAWN published on 1.11.2017
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GB/T 7513-1987
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Layout of the Chinese ideographs on keyboard
WITHDRAWN published on 24.3.1987
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