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Standards GB - Chinese national standards - Page 6550
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/T 17436-1998
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Selection of explosion proof electrical equipment in ship hazardous areas
WITHDRAWN published on 24.7.1998
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GB/T 17437-1998
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Procedures for calibrating and determining the response of neutron-measuring devices used for radiation protection purposes
WITHDRAWN published on 30.7.1998
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GB/T 17439-1998
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Specification for transmission of component-coded digital television signals for contribution-quality applications at the third hierarchical level
WITHDRAWN published on 24.7.1998
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GB 1744-1979
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WITHDRAWN published on 1.1.1979
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GB 17440-1998
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Safety regulations for the protection of dust explosion for grain processing, storage and transportation system
WITHDRAWN published on 28.7.1998
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GB 17440-2008
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Safety regulations for the protection of dust expolsion for grain processing,storage and transportation system
WITHDRAWN published on 11.12.2008
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GB/T 17441-1998
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Symbols for alternating-current electricity meters
WITHDRAWN published on 28.7.1998
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GB/T 17442-1998
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Acceptance inspection for direct connected alternating current static watt-hour meters for active energy (classes 1 and 2)
WITHDRAWN published on 28.7.1998
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GB/T 17443-1998
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Specification and technical requirements for 500kV current transformers
WITHDRAWN published on 23.7.1998
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GB/T 17444-1998
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The technical norms for measurement and test of characteristic parameters of infrared focal plane arrays
WITHDRAWN published on 30.7.1998
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