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Standards GB - Chinese national standards - Page 8458
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 6220-1986
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Long tube respirators
WITHDRAWN published on 9.4.1986
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GB 6221-1986
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Performance test methods of long tube respirators
WITHDRAWN published on 9.4.1986
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GB 6222-1986
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Safety code for gas of industrial enterprises
WITHDRAWN published on 9.4.1986
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GB 6222-2005
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Safety code for gas of industrial enterprises
WITHDRAWN published on 6.9.2005
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GB 6223-1986
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Filter type respirator for particles
WITHDRAWN published on 1.1.1986
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GB/T 6223-1997
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Self-inhalation filter type particle respirator
WITHDRAWN published on 8.5.1997
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GB/T 6224.1-1986
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Test method for total inward leakage of filtering particle respirator
WITHDRAWN published on 9.4.1986
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GB/T 6224.2-1986
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Test method for filter efficiency of filtering particle respirator
WITHDRAWN published on 9.4.1986
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GB/T 6224.3-1986
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Test method for the dead space of filtering particle respirator
WITHDRAWN published on 9.4.1986
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GB/T 6224.4-1986
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Test method for airflow resistance of respiration of filtering particle respirator
WITHDRAWN published on 9.4.1986
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