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Standards GB - Chinese national standards - Page 7766
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 4574-1984
WITHDRAWN
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Measuring methods for actual circuit noise and the circuit noise in simulating system loading over the analogue communication network
WITHDRAWN published on 17.7.1984
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GB/T 4575-1984
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Frequency comparison pilot series for the FDM systems in the toll communication network
WITHDRAWN published on 17.7.1984
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GB 4576-1984
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Specification for group translating equipment used on carrier systems
WITHDRAWN published on 1.1.1984
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GB 4577-1984
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Specification for channel translating equipment used on carrier systems
WITHDRAWN published on 1.1.1984
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GB 4578-1984
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Food additive—Saccharin sodium
WITHDRAWN published on 13.7.1984
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GB 4578-2008
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Food additive—Sodium saccharin
WITHDRAWN published on 3.12.2008
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GB 4579-1984
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Method for determination of sewability of sewing thread
WITHDRAWN published on 1.1.1984
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GB/T 458-1989
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Paper and board--Determination of air permeance(Schopper method)
WITHDRAWN published on 31.3.1989
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GB/T 458-2002
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Paper and board—Determination of air permeance (Schopper method)
WITHDRAWN published on 6.9.2002
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GB 4580-1984
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Unlined fire hose
WITHDRAWN published on 18.7.1984
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