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Standards GB - Chinese national standards - Page 7561

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GB 748-1996 WITHDRAWN

Sulfate resistance portland cement

WITHDRAWN published on 15.5.1996

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GB/T 748-2005 WITHDRAWN

Sulfate resistance Portland cement

WITHDRAWN published on 22.4.2005

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GB/T 749-2001 WITHDRAWN

Test method for potential expansion of portland cement mortars exposed to sulfate

WITHDRAWN published on 29.4.2001

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GB/T 7496-1987 WITHDRAWN

Information processing systems—Data communication—High-level data link control procedures—Frame structure

WITHDRAWN published on 24.3.1987

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GB/T 7497.1-1987 WITHDRAWN

Microprocessor system bus --8-bit and 16-bit data--Part 1:Functional description with electrical and timing specifications

WITHDRAWN published on 24.3.1987

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GB/T 7497.2-1987 WITHDRAWN

Microprocessor system bus --8-bit and 16-bit data--Part 2:Mechanical and pin descriptions for the system bus configuration with edge connecters (direct)

WITHDRAWN published on 24.3.1987

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GB/T 7497.3-1987 WITHDRAWN

Microprocessor system bus --8-bit and 16-bit data--Part 3:Mechanical and pin descriptions for the eurocard configuration with pin and socket (indirect) connecters

WITHDRAWN published on 24.3.1987

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