This document specifies: a) the field of application for mechanical mixing valves for use in a supply system of Type 1 (see Figure 1); b) the dimensional, leak tightness, pressure resistance, hydraulic performance, mechanical strength, endurance, corrosion resistance of the surface of the product, sequence of testing and acoustic characteristics with which sanitary tapware products including their components (flexible hose, pull out spray) need to comply where applicable; c) test methods to verify the characteristics. The tests described in this document are type tests (laboratory tests) and not quality control or factory production control (FPC) tests carried out during manufacture. This document applies to draw-off taps (mechanical mixing valves) for use with sanitary appliances installed in rooms used for personal hygiene (cloakrooms, bathrooms, etc.) and for food preparation (kitchens), i.e. for use with baths, wash basins, bidets, showers and sinks.