Installation, maintenance and repair services, all for installations, apparatus, instruments and equipment used in the treatment and/or purification of water; installation, maintenance and repair services, all for installations, apparatus, instruments and equipment for purifying, sterilising, disinfecting and/or deodorising; installation, maintenance and repair services, all for the treatment of articles and/or fluids with ultraviolet light or ultraviolet lamps; information, advisory and consultancy services relating to all the foregoing
Building Construction and RepairTraining, instruction, tuition, teaching services; arranging, organising and/or conducting seminars, tutorials, lectures, courses and/or demonstrations for training, instruction, tuition and/or teaching purposes; information, advisory and consultancy services relating to all the foregoing
Education and EntertainmentWater analysis; industrial analysis services; inspection of apparatus; technical inspection and/or technical supervision services; industrial testing; testing of apparatus and/or machinery; materials testing and/or analysing; safety technological testing services; water quality control services; quality testing, quality control testing; quality checking; information, advisory and consultancy services relating to all the foregoing
Computer and Scientific