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Standards GB - Chinese national standards - Page 6221
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 18553-2001
WITHDRAWN
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Occupational exposure limit for petroleum asphalt(fume) in the air of workplace
WITHDRAWN published on 4.12.2001
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GB 18554-2001
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Occupational exposure limit for carbon monoxide in the air of high altitude workplace
WITHDRAWN published on 4.12.2001
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GB 18555-2001
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Occupational exposure limit for high frequency field in the work environment
WITHDRAWN published on 4.12.2001
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GB 18556-2001
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Occupational exposure limit for norgestrel in the air of workplace
WITHDRAWN published on 4.12.2001
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GB 18557-2001
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Occupational exposure limit for acephate in the air of workplace
WITHDRAWN published on 4.12.2001
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GB 18558-2001
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Occupational exposure limit for precipitated silica dust in the air of workplace
WITHDRAWN published on 4.12.2001
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GB 18559-2001
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Occupational exposure limit for trinitrotoluene in the air of workplace
WITHDRAWN published on 4.12.2001
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GB/T 1856-1993
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Marine flanged cast iron single arrangement exhaust stop box valve
WITHDRAWN published on 21.7.1993
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GB 18560-2001
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Occupational exposure limit for urea in the air of workplace
WITHDRAWN published on 4.12.2001
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GB 18561-2001
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Occupational exposure limit for 1,1,1-trichloroethane in the air of workplace
WITHDRAWN published on 4.12.2001
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