ČSN EN 13618

This European Standard specifies the requirements and test methods for materials, dimensions and function for flexible hose assemblies for drinking water installations, braided or not, designed for use with drinking water with an allowable maximum operating pressure (PMA) of 1 MPa and maximum operating temperature 70 °C to connect sanitary tap ware, heaters and similar appliances.
NOTE: Flexible hose assemblies intended to be used as integral parts of electrical appliances are covered by EN 61770.