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IEC

PDF Standards IEC 60169-9 Ed. 1.0 b:1978

Radio-frequency connectors. Part 9: R.F. coaxial connectors with inner diameter of outer conductor 3 mm (0.12 in) with screw coupling – Characteristic impedance 50 ohms (Type SMC)
standard by International Electrotechnical Commission, 01/01/1978

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IEC

PDF Standards IEC 61482-1-1 Ed. 2.0 b:2019

Live working – Protective clothing against the thermal hazards of an electric arc – Part 1-1: Test methods – Method 1: Determination of the arc rating (ELIM, ATPV and/or EBT) of clothing materials and of protective clothing using an open arc
standard by International Electrotechnical Commission, 07/01/2019

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IEC

PDF Standards IEC 60050-561 Amd.4 Ed. 2.0 b:2021

Amendment 4 – International Electrotechnical Vocabulary (IEV) – Part 561: Piezoelectric, dielectric and electrostatic devices and associated materials for frequency control, selection and detection
Amendment by International Electrotechnical Commission, 08/01/2021

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