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IEC

PDF Standards IEC 61558-2-14 Ed. 1.0 b:2012

Safety of transformers, reactors, power supply units and combinations thereof – Part 2-14: Particular requirements and tests for variable transformers and power supply units incorporating variable transformers
standard by International Electrotechnical Commission, 11/22/2012

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IEC

PDF Standards IEC 61338-1-4 Ed. 1.0 b:2005

Waveguide type dielectric resonators – Part 1-4: General information and test conditions – Measurement method of complex relative permittivity for dielectric resonator materials at millimetre-wave frequency
standard by International Electrotechnical Commission, 11/08/2005

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IEC

PDF Standards IEC 61338-1-3 Ed. 1.0 b:1999

Waveguide type dielectric resonators – Part 1-3: General information and test conditions – Measurement method of complex relative permittivity for dielectric resonator materials at microwave frequency
standard by International Electrotechnical Commission, 11/30/1999

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