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Standards GB - Chinese national standards - Page 8751
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 8343-1987
WITHDRAWN
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High-temperature and low-temperature test method for cameras
WITHDRAWN published on 1.12.1987
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GB 8344-1987
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Vibration test method for cameras
WITHDRAWN published on 1.12.1987
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GB 8345-1987
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Condition and test method for pack,transport and storage of photographic apparatus
WITHDRAWN published on 1.12.1987
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GB 8346-1987
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Method of testing for spectral transmissivity of camera lenses
WITHDRAWN published on 1.1.1987
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GB 8347-1987
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Methods of measurement for effective aperture and relative aperture of photographic lenses
WITHDRAWN published on 1.1.1987
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GB 8348-1987
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Method of measurement for vignetting factor and uniformity of image plane illuminance
WITHDRAWN published on 1.1.1987
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GB/T 8350-1987
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Conveyor chains, attachments and chain wheels
WITHDRAWN published on 1.1.1987
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GB/T 8350-2003
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Conveyor chains, attachments and sprockets
WITHDRAWN published on 29.10.2003
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GB 8351-1987
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Coal-tar-creosote the preservation of timber
WITHDRAWN published on 1.1.1987
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GB 8352.1-1987
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Test method for coal-tar-creosote--Determination of density
WITHDRAWN published on 1.1.1987
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