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Standards GB - Chinese national standards - Page 8621

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GB/T 7676.3-1998 WITHDRAWN

Direct acting indicating analogue electrical measuring instruments and their accessories Part 3:Special requirements for wattmeters and varmeters

WITHDRAWN published on 28.7.1998

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GB 7676.4-1987 WITHDRAWN

WITHDRAWN published on 1.1.1987

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GB/T 7676.4-1998 WITHDRAWN

Direct acting indicating analogue electrical measuring instruments and their accessories Part 4:Special requirements for frequency meters

WITHDRAWN published on 28.7.1998

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GB 7676.5-1987 WITHDRAWN

WITHDRAWN published on 1.1.1987

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GB/T 7676.5-1998 WITHDRAWN

Direct acting indicating analogue electrical measuring instruments and their accessories Part 5:Special requirements for phase meters,power factor meters and synchroscopes

WITHDRAWN published on 28.7.1998

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GB 7676.6-1987 WITHDRAWN

WITHDRAWN published on 1.1.1987

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GB/T 7676.6-1998 WITHDRAWN

Direct acting indicating analogue electrical measuring instruments and their accessories Part 6:Special requirements for ohmmeters(impedance meters) and conductance meters

WITHDRAWN published on 28.7.1998

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