This European Standard specifies requirements relating to the construction and mode of operation and relevant methods of testing of automatic, salt-regenerated, cation exchange softeners for drinking water installations inside buildings which are permanently connected to the mains supply. Until EAS comes into force, the current national regulations remain applicable. NOTE Products intended for use in water supply systems should comply, when existing, with national regulations and testing arrangements that ensure fitness for contact with drinking water. The Member States relevant regulators and the EC Commission agreed on the principle of a future unique European Acceptance Scheme (EAS) which would provide a common testing and approval arrangement at European level. If and when the EAS is adopted, European Standards on products will be amended by the addition of an Annex Z/EAS under Mandate M/136 which will contain formal references to the testing, certification and product marking requirements of the EAS.
EN 14743:2005+A1:2007 Referenced Document
EN 1717:2000 Protection against pollution of potable water in water installations and general requirements of devices to prevent pollution by backflow*， 2024-04-20 Update
EN 60335-1:2002 Household and similar electrical appliances ?Safety Part 1: General requirements Incorporates Amendments A2: 2006, A11: 2004 and A12: 2006; Incorporating corrigendum January 2007; Incorporates Amendment A13: 2008; Incorporating corrigendum July 2009 and*， 2024-04-20 Update
EN 973:2002 Chemicals Used for Treatment of Water Intended for Human Consumption Sodium Chloride for Regeneration of Ion Exchangers
EN ISO 10304-1:1995 Water Quality - Determination of Dissolved Fluoride, Chloride, Nitrite, Orthophosphate, Bromide, Nitrate and Sulfate Ions, Using Liquid Chromatography of Ions - Part 1: Method for Water with Low Contamination (ISO 10304-1 : 1992)
EN ISO 11885:1997 Water Quality - Determination of 33 Elements by Inductively Coupled Plasma Atomic Emission Spectroscopy ISO 11885:1996
EN ISO 228-1:2003 Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation ISO 228-1: 2000
EN ISO 3822-1:1999 Acoustics ?Laboratory tests on noise emission from appliances and equipment used in water supply installations ?Part 1: Method of measurement Incorporates Amendment A1: 2008
EN ISO 3822-3:1997 Acoustics - Laboratory Tests on Noise Emission from Appliances and Equipment Used in Water Supply Installations - Part 3: Mounting and Operating Conditions for In-Line Valves and Appliances Incorporates Amendment A1: 2009
ISO 7-1:1994 Pipe threads where pressure-tight joints are made on the threads - Part 1: Dimensions, tolerances and designation
EN 14743:2005+A1:2007 history
2007EN 14743:2005+A1:2007 Water conditioning equipment inside buildings - Softeners - Requirements for performance, safety and testing
2005EN 14743:2005 Water conditioning equipment inside buildings - Softeners - Requirements for performance, safety and testing (Incorporates Amendment A1: 2007)