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. Radio communication equipment. Part 13. Specific requirements for private radio equipment operating at frequencies between 26965 kHz and 27860 kHz and ancillary equipment
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