Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Part 2. Insulation resistance
Mechanical vibration. Methods for the calibration of vibration and shock transducers. Part 15. Primary angular vibration calibration by laser interferometry
State system for ensuring the uniformity of measurements. State special standard and state verification schedule for means measuring intensities ratio distributions and phase shift angle in aperture field of antenna systems with operating dimensions from 3x3 to 6x12 m2 at the frequency range from 2,5 to 4,0 and from 8,2 to 12,0 GHz
