State system for ensuring the uniformity of measurements. State primary standard and state verification schedule for measuring means of magnetic inductance of static field in the range from 1x10 in minus 12 degree up to 5x10 in minus 2 degree T, constant magnetic flux, magnetic inductance and magnetic moment in frequency band from 0 - 20000 Hz
State system for ensuring the uniformity of measurements. Medical diagnostic ultrasonic equipment. Portable foetal heartbeat detectors. General requirements for the declaration of parameters and measurement methods
