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Standards GB - Chinese national standards - Page 5736
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 12661-1990
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Paper and board—Determination of microbiological properties—Total bacterial count
WITHDRAWN published on 28.12.1990
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GB 12662-1990
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Specification for disruptor
WITHDRAWN published on 28.12.1990
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GB 12663-1990
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General specifications for burglar-alarm control units
WITHDRAWN published on 1.1.1990
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GB 12663-2001
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General specifications for burglar-alarm control units
WITHDRAWN published on 16.11.2001
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GB 12664-1990
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Specification for portable X-Ray security inspect equipment
WITHDRAWN published on 1.1.1990
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GB 12664-2003
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General specification for portable X-ray security inspection equipment
WITHDRAWN published on 24.6.2003
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GB/T 12665-1990
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Requirements of damp-heat testing of electrical machine for service in general environmental condition
WITHDRAWN published on 28.12.1990
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GB/T 12665-2008
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Requirements of damp-heat testing of electrical machine for service in general environmental condition
WITHDRAWN published on 13.6.2008
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GB/T 12666.1-1990
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Test method on electric wires or cables under fire conditions Part 1:General
WITHDRAWN published on 28.12.1990
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GB/T 12666.2-1990
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Test method on electric wires or cables under fire conditions--Part 2: Test on a single vertical insulated wire or cable
WITHDRAWN published on 1.1.1990
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