Consideration of reference impedances and public supply network impedances for use in determining disturbance characteristics of electrical equipment having a rated current <LE> 75 A per phase
Edition 2012-07-31

Multicore and symmetrical pair/quad cables for digital communications. Correction procedures for the measurement results of return loss and input impedance
Edition 2013-07-31

Label-free impedance technology to assess the toxicity of nanomaterials in vitro
Edition 2021-08-13

RADIO-FREQUENCY CONNECTORS. PART 13: R.F. COAXIAL CONNECTORS WITH INNER DIAMETER OF OUTER CONDUCTOR 5,6 MM (0,22 IN). CHARACTERISTICS IMPEDANCE 75 OHMS (TYPE 1.8/5.6) WITH SIMILAR MATING DIMENSIONS.
Edition 1998-09-25

RADIO-FREQUENCY CONNECTORS. PART 13: R.F. COAXIAL CONNECTORS WITH INNER DIAMETER OF OUTER CONDUCTOR 5,6 MM (0,22 IN). CHARACTERISTICS IMPEDANCE 75 OHMS (TYPE 1.6/5.6). CHARACTERISTIC IMPEDANCE 50 OHMS (TYPE 1,8/5,6) WITH SIMILAR MATING DIMENSIONS.
Edition 1998-09-25

ELECTRICAL RELAYS. PART 16: IMPEDANCE MEASURING RELAYS.
Edition 1996-05-20

Direct acting indicating analogue electrical measuring instruments and their accessories - Part 6: Special requirements for ohmmeters (impedance meters) and conductance meters (Endorsed by Asociación Española de Normalización in May of 2018.)
Edition 2018-05-01

Radio-frequency connectors - Part 4: RF coaxial connectors with inner diameter of outer conductor 16 mm (0,63 in) with screw lock - Characteristic impedance 50 ohms (type 7-16)
Edition 2024-03-20

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

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