Electromagnetic compatibility of technical equipment. Immunity of audio, video, audio-visual and entertainment lighting control apparatus for professional use. Requirement and test methods
State system for ensuring the uniformity of measurements. State verification schedule for instruments measuring of sound velocity in liquids within the velocity range 800 to 2000 m/s
Electrical apparatus for explosive gas atmospheres. Part 19. Repair and overhaul for apparatus used in explosive atmospheres (other than mines or explosives)
€10
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