Connecting devices for low-voltage circuits for household and similar purposes. Part 2-1. Particular requirements for connecting devices as separate entities with screw-type clamping units
State system for ensuring the uniformity of measurements. Medical ultrasonic therapeutic equipment. General requirements for measurement procedures of the acoustic output performance in the frequency range from 0,5 MHz to 5,0 MHz
Parts and assembly units of universal assembly devices for metal-cutting machines. Technical requirements. Methods of control. Marking, packing, transportation and storage
