This Standard is an adoption with national modifications of the first edition of IEC 60335-2-109, Household and similar electrical appliances - Safety - Part 2-109: Particular requirements for UV radiation water treatment appliances. This part 2 has to be used in conjunction with the latest edition of AS/NZS 60335.1 Household and similar electrical appliances - Safety - Part 1: General requirements and its Amendments. It was established on the basis of AS/NZS 60335.1:2011. This part 2 supplements or modifies the corresponding clauses of AS/NZS 60335.1 so as to convert it into the Australian/New Zealand Standard: Safety requirements for UV radiation water treatment appliances. The national variations to the IEC 60335-2-109 Ed 1 form the Australian and New Zealand national variations for purposes of the IECEE scheme for recognition of results of testing to standards for safety of electrical equipment (the CB scheme).