This European Standard specifies constructional and performance requirements together with test methods for close-coupled suites, one-piece and independent WC pans with integral trap used for personal hygiene manufactured from glazed ceramics or stainless steel.This European Standard does not apply to squatting toilets, WC pans without integral trap or flushing cisterns as separate appliances. In the case of independent WC pans, the associated flushing cisterns and pressure valves are covered by other standards and the reference to cisterns inThis standard is related only to the definition and requirements of flushing volume. In the case of close-coupled suites and one-piece WCs,This standard also specifies design, performance requirements and the test methods for designated flushing cisterns with flushing mechanisms, inlet valves and overflows. For these products,This standard covers flushing cisterns designed to be connected to drinking water installations inside buildings. Before installation of WCs, EN 12056-2 and national requirements need to be taken into consideration.
EN 997:2012 Referenced Document
BS 1212-2:1990 Float operated valves - Specification for diaphragm type float operated valves (copper alloy body) (excluding floats)
BS 1212-3:1990 Float operated valves - Specification for diaphragm type float operated valves (plastics bodied) for cold water services only (excluding floats)
BS 1212-4:1991 Float operated valves - Specification for compact type float operated valves for WC flushing cisterns (including floats)
EN 12056-2 Gravity drainage systems inside buildings - Part 2: Sanitary pipework, layout and calculation
EN 13618 Flexible hose assemblies in drinking water installations - Functional requirements and test methods*， 2016-12-01 Update
EN 14124 Inlet valves for flushing cisterns with internal overflow
EN 1717 Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow*， 2024-04-19 Update