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GB - Chinese national standards - Page 7693

Standards GB - Chinese national standards - Page 7693

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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Preview GB/T 3789.12-1991 15.8.1991
GB/T 3789.12-1991 WITHDRAWN

Measurements of the electrical properties of transmitting tubes Measuring methods of interelectrode insulation

WITHDRAWN published on 15.8.1991

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Preview GB/T 3789.13-1991 15.8.1991
GB/T 3789.13-1991 WITHDRAWN

Measurements of the electrical properties of transmitting tubes Measuring methods of static characteristic curve for common grid circuit

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Preview GB/T 3789.14-1991 15.8.1991
GB/T 3789.14-1991 WITHDRAWN

Measurements of the electrical properties of transmitting tubes Measuring methods of static characteristic curve for common cathode circuit

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Preview GB/T 3789.15-1991 15.8.1991
GB/T 3789.15-1991 WITHDRAWN

Measurements of the electrical properties of transmitting tubes Measuring methods of output power

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Preview GB/T 3789.16-1991 15.8.1991
GB/T 3789.16-1991 WITHDRAWN

Measurements of the electrical properties of transmitting tubes Measuring methods of pulse output power

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Preview GB/T 3789.17-1991 15.8.1991
GB/T 3789.17-1991 WITHDRAWN

Measurements of the electrical properties of transmitting tubes Measuring methods of electrical intensity

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Preview GB/T 3789.18-1991 15.8.1991
GB/T 3789.18-1991 WITHDRAWN

Measurements of the electrical properties of transmitting tubes Measuring methods of high frequency loss for interelectrode insulators

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Preview GB/T 3789.19-1991 15.8.1991
GB/T 3789.19-1991 WITHDRAWN

Measurements of the electrical properties of transmitting tubes Measuring methods of frequency characteristic curve

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Preview GB/T 3789.2-1991 15.8.1991
GB/T 3789.2-1991 WITHDRAWN

Measurements of the electrical properties of transmitting tubes Measuring methods of current of anode and grid

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Preview GB/T 3789.20-1991 15.8.1991
GB/T 3789.20-1991 WITHDRAWN

Measurements of the electrical properties of transmitting tubes Measuring methods of grid 1 current cut-off voltage

WITHDRAWN published on 15.8.1991

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