This document stipulates the terms and definitions, classification and naming, basic requirements, product requirements, test methods and inspection rules, marking, packaging, transportation and storage, and quality commitment of temperature-controlled faucets. This document is suitable for installation in sanitary facilities such as washrooms (toilets, bathrooms, etc.), kitchens, shower rooms, etc. under the conditions that the nominal pressure is not greater than 2 MPa and the water medium temperature is 4 ℃ ~ 85 ℃. The outlet temperature is automatically affected by the preselected temperature. Controlled hot and cold water mixing spout. This document does not apply to constant temperature and pressure faucets and CNC constant temperature faucets.