State system for ensuring the uniformity of measurements. Pressure gauges, vacuum pressure gauges, vacuum manometers, draught gauges, delivery head meters and draught head gauges with unified electric (current) output signals. Methods and means of verification
Electromagnetic compatibility of technical equipment. Electrical equipment for measurement, control and laboratory use. Part 2-4. Particular requirements for insulation monitoring devices and insulation fault location equipment. Test configurations, operational conditions and performance criteria
