This document specifies:a)field of application;b)requirements for automatic diverters;c)dimensional and the physico chemical properties and the properties of general hydraulic, mechanical and acoustic design of automatic diverters;d)test method and requirements for verifying these properties. For sanitary tapware (see Clause 2) with integrated devices, the automatic diverter is only considered to be a backflow protection device if it has passed the requirements of this document and additionally those of the applicable product standard for the draw off tap or mixing valve;e)marking and presentation;f)acoustics.This document specifies the characteristics of automatic diverters suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C. They are intended only for installation with no downstream closing device.This document is applicable to the product type indicated as follows:i)integrated in spout (outlet);ii)integrated in the mixing body;iii)non-integrated (part of a set) above the maximum water level.This document is not applicable to the product type non-integrated below the maximum water level.