Radio-frequency connectors - Part 4: R.F. coaxial connectors with inner diameter of outer conductor 16 mm (0,63 in) with screw lock - Characteristic impedance 50 ohms (Type 7-16) (IEC 46F/60/CDV)
Edition 2007-03-01

Radio-frequency connectors - Part 38: Sectional specification - Radio frequency coaxial connectors model, slide-in (rack and panel applications) - Characteristic impedance 50 O (type TMA) - 50 O applications (Endorsed by AENOR in May of 2009.)
Edition 2009-05-01

BS EN IEC 61196-1-108. Coaxial communication cables. Part 1-108. Electrical test methods. Test for phase, phase constant, phase and group delay, propagation velocity, electrical length, and mean characteristic impedance
Edition 2023-12-01

Radio-frequency connectors. Part 10: R.F. coaxial connectors with inner diameter of outer conductor 3 mm (0.12 in) with snap-on coupling - Characteristic impedance 50 ohms (Type SMB)

Label-free impedance technology to assess the toxicity of nanomaterials in vitro
Edition 2021-08

Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 3: Loop impedance (IEC 61557-3:2007).
Edition 2007-12-19

Radio-frequency connectors - Part 63: Sectional specification - RF coaxial connectors with inner diameter of outer conductor 6,5 mm (0,256 in) with bayonet lock - Characteristic impedance 75 ohms (type BNC75)
Edition 2020-10-14

Radio-frequency connectors - Part 15: Sectional specification - RF coaxial connectors with inner diameter of outer conductor 4,13 mm (0,163 in) with threaded coupling - Characteristic impedance 50 O (type SMA)
Edition 2021-06-30

Metallic cables and other passive components test methods - Part 4-15: Electromagnetic compatibility (EMC) - Test method for measuring transfer impedance and screening attenuation - or coupling attenuation with triaxial cell
Edition 2022-04-06

Radio-frequency connectors - Part 17: Sectional specification for RF coaxial connectors with inner diameter of outer conductor 6,5 mm (0,256 in) with screw coupling - Characteristic impedance 50 ohms (Type TNC)
Edition 2022-09-14