EN 60565This description is for standard: EN 60565Specifies methods for calibration of hydrophones or reversible transducers when used as a hydrophone, particularly in the frequency range from 0,01 Hz
EN 62127-1This description is for standard: EN 62127-1This part of IEC 62127 specifies methods of use of calibrated hydrophones for the measurement in liquids of acoustic fields generated by ultrasoni
EN 62127-2This description is for standard: EN 62127-2This part of IEC 62127 specifies: - absolute hydrophone calibration methods; - relative (comparative) hydrophone calibration methods. This standar
EN 62127-3This description is for standard: EN 62127-3This part of IEC 62127 specifies relevant hydrophone characteristics. This standard is applicable to: - hydrophones employing piezoelectric sensor
EN 61161 ed. 2This description is for standard: EN 61161 ed. 2This International Standard - specifies a method of determining the total emitted acoustic power of ultrasonic transducers based on the us
EN 50107-2This description is for standard: EN 50107-2This European Standard specifies requirements for earth-leakage and open-circuit protective devices designed to protect circuits for neon tubes op
EN 50468This description is for standard: EN 50468This European Standard specifies the minimum level of resistibility of equipment having telecommunication port(s) to overvoltages and overcurrents. Th
EN 50122-1This description is for standard: EN 50122-1This standard specifies requirements for the protective provisions relating to electrical safety in fixed installations associated with a.c.-and d
EN 50122-1 ed. 2This description is for standard: EN 50122-1 ed. 2This European Standard specifies requirements for the protective provisions relating to electrical safety in fixed installations assoc
EN 50122-2This description is for standard: EN 50122-2This standard specifies requirements for protective provisions against the effects of stray currents which result from the operation of d.c. tract
EN 50122-2 ed. 2This description is for standard: EN 50122-2 ed. 2This European Standard specifies requirements for protective provisions against the effects of stray currents, which result from the o
EN 50122-3This description is for standard: EN 50122-3This European Standard specifies requirements for the protective provisions relating to electrical safety in fixed installations, when it is reaso
EN 50119 ed. 2This description is for standard: EN 50119 ed. 2This European Standard applies to electric traction overhead contact line systems in heavy railways, light railways, trolley busses and in
EN 50345 ed. 2This description is for standard: EN 50345 ed. 2This European Standard applies to the insulating synthetic ropes used in overhead contact lines. This European Standard specifies the char
EN 50215This description is for standard: EN 50215This European Standard specifies general criteria to demonstrate by testing that complete railway vehicles conform with standards or other normative d