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Standards GB - Chinese national standards - Page 7602
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 4772.3-1984
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WITHDRAWN published on 1.1.1984
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GB/T 4773-1984
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Parameters of steam turbines in conventional combined heating and power stations
WITHDRAWN published on 27.11.1984
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GB/T 4774-1984
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Terminology of centrifuge and filter
WITHDRAWN published on 27.11.1984
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GB/T 4774-2004
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Terminology of separating machine
WITHDRAWN published on 9.6.2004
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GB 4775-1984
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Tool joints for drill pipe for oil or natural gas wells
WITHDRAWN published on 1.1.1984
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GB/T 4776-1984
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Electrical safety terminology
WITHDRAWN published on 30.11.1984
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GB/T 4776-2008
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Electrical safety terminology
WITHDRAWN published on 24.4.2008
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GB 4777-1984
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Colour codes for wire leads of microwave devices
WITHDRAWN published on 1.1.1984
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GB 4778-1984
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General specification for vacuum capacitors
WITHDRAWN published on 1.1.1984
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GB/T 4779.1-1984
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Phosphors for color picture tubes use--Phosphor Y22-G3
WITHDRAWN published on 27.11.1984
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