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GB - Chinese national standards - Page 5550

Standards GB - Chinese national standards - Page 5550

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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Preview GB/T 11971-1997 12.11.1997

GB/T 11971-1997 WITHDRAWN

Test method for mechanical property of aerated concrete

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Preview GB 11972-1989 1.1.1989

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WITHDRAWN published on 1.1.1989

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Preview GB/T 11972-1997 12.11.1997

GB/T 11972-1997 WITHDRAWN

Test methods for dry shrinkage of aerated concrete

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Preview GB 11973-1989 1.1.1989

GB 11973-1989 WITHDRAWN

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WITHDRAWN published on 1.1.1989

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Preview GB/T 11973-1997 12.11.1997

GB/T 11973-1997 WITHDRAWN

Test method for frost-resistance of aerated concrete

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Preview GB 11974-1989 1.1.1989

GB 11974-1989 WITHDRAWN

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WITHDRAWN published on 1.1.1989

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Preview GB/T 11974-1997 12.11.1997

GB/T 11974-1997 WITHDRAWN

Test method for carbonation of aerated concrete

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Preview GB 11975-1989 1.1.1989

GB 11975-1989 WITHDRAWN

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Preview GB/T 11975-1997 12.11.1997

GB/T 11975-1997 WITHDRAWN

Test method for wet-dry cycle of aerated concrete

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Preview GB/T 11976-1989 1.1.1989

GB/T 11976-1989 WITHDRAWN

Graduation and test method of daylighting properties for windows

WITHDRAWN published on 1.1.1989

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