Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 4-4: Low voltage decoupling filter - Impedance filter; German version EN 50065-4-4:2023
Edition 2024-02

Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz - Part 7: Equipment impedance; German version EN 50065-7:2001
Edition 2002-06

Communication cables - Specifications for test methods - Part 1-11: Electrical test methods - Characteristic impedance, input impedance, return loss; German version EN 50289-1-11:2016
Edition 2018-08

Connectors for electronic equipment - Tests and measurements - Part 23-7: Screening and filtering tests - Test 23g: Effective transfer impedance of connectors (IEC 60512-23-7:2005); German version EN 60512-23-7:2005
Edition 2005-10

Connectors for electronic equipment - Tests and measurements - Part 25-7: Test 25g - Impedance, reflection coefficient and standing voltage wave ratio (VSWR) (IEC 60512-25-7:2004); German version EN 60512-25-7:2005
Edition 2005-12

Electroacoustics - Audiometric equipment - Part 5: Instruments for the measurement of aural acoustic impedance/admittance (IEC 60645-5:2004); German version EN 60645-5:2005
Edition 2005-08

Printed boards and printed board assemblies - Design and use - Part 1-2: Generic requirements; controlled impedance (IEC 61188-1-2:1998); German version EN 61188-1-2:1998
Edition 1999-03

Superconductivity - Part 15: Electronic characteristic measurements - Intrinsic surface impedance of superconductor films at microwave frequencies (IEC 61788-15:2011); German version EN 61788-15:2011
Edition 2012-08

Specification for WB series glass beads with 50 Ω impedance for RF connectors (IEC 63295:2022); German version EN IEC 63295:2022
Edition 2024-04