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Standards GB - Chinese national standards - Page 5603
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 11720-1989
WITHDRAWN
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Health standard for trichlorfon in the air of workplace
WITHDRAWN published on 30.12.1988
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GB 11721-1989
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Health standard for elthylene oxide in the air of workplace
WITHDRAWN published on 30.12.1988
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GB 11722-1989
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Health standard for vanadium and its compounds in the air of workplace
WITHDRAWN published on 30.12.1988
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GB 11723-1989
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Health standard for 1,2-dichloroethane in the air of workplace
WITHDRAWN published on 30.12.1988
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GB 11724-1989
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Health standard for dust containing 50% ~ 80% free silica in the air of workplace
WITHDRAWN published on 30.12.1988
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GB 11725-1989
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Health standard for dust containing more than 80% free silica in the air of workplace
WITHDRAWN published on 30.12.1988
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GB 11726-1989
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Health standard for dusts of aluminium, aluminium oxid and aluminium alloys in the air of workplace
WITHDRAWN published on 30.12.1988
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GB 11727-1989
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Hygienic standard for room volume of dwelling house
WITHDRAWN published on 10.2.1989
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GB 11728-1989
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Hygienic standard for copper in soil
WITHDRAWN published on 10.2.1989
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GB 11729-1989
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Hygienic standard for chlorothalonile in drinking water sources
WITHDRAWN published on 10.2.1989
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