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Standards GB - Chinese national standards - Page 6219
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 18535-2001
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Occupational exposure limit for bentonite dust in the air of workplace
WITHDRAWN published on 4.12.2001
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GB 18536-2001
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Occupational exposure limit for phosphorus oxychloride in the air of workplace
WITHDRAWN published on 4.12.2001
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GB 18537-2001
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Occupational exposure limit for maleic anhydride in the air of workplace
WITHDRAWN published on 4.12.2001
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GB 18538-2001
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Occupational exposure limit for ethanolamine in the air of workplace
WITHDRAWN published on 4.12.2001
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GB 18539-2001
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Occupational exposure limit for propylene oxide in the air of workplace
WITHDRAWN published on 4.12.2001
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GB/T 1854-1993
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Marine flanged cast iron single arrangement suction stop box valve
WITHDRAWN published on 24.5.1993
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GB 18540-2001
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Occupational exposure limit for calcium oxide in the air of workplace
WITHDRAWN published on 4.12.2001
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GB 18541-2001
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Occupational exposure limit for phenol formaldehyde resin in the air of workplace
WITHDRAWN published on 4.12.2001
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GB 18542-2001
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Occupational exposure limit for zeolite dust in the air of workplace
WITHDRAWN published on 4.12.2001
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GB 18543-2001
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Occupational exposure limit for hydroquinone in the air of workplace
WITHDRAWN published on 4.12.2001
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