7
Fruit washing machines; Machines for washing food [electric]; High-pressure pumps for washing appliances and installations; Vegetable washers [machines]; Swimming pool cleaning machines; Automatic swimming pool sweepers; Electric water pumps for swimming pools; Rinsing machines; Bottling machines; Water separators [machines]; Machines for the production of mineral water; Machines for use in the processing of water; Machines for cleaning surfaces using high pressure water; Sewage pulverizers; Sewage treatment machines; Filtering machines used in sewage handling
9
Ozonisers [ozonators]; Chromatography columns; Separation columns for scientific purposes; Separation columns for measuring purposes; Distillation columns for laboratory use; Vacuum distillation columns for laboratory use; Liquid chromatography columns for scientific use; Water level indicators; Water leakage detection alarms
11
Neutralisation columns; Rectification columns; Columns for physical separation of fractions; Chromatography columns for industrial use; Extraction columns [other than laboratory apparatus]; Columns for physical-chemical separation of fractions; Vacuum distillation columns for industrial use; Sewage treatment [purification] installations; Membrane purifying apparatus for the purification of water; Water purifying apparatus; Water purification units; Filters for water purifiers; Water purifying installations; Wastewater purification units; Sewage purification apparatus; Water purification tanks; Sewage purification apparatus; Electric bath-water purifying apparatus for household purposes; Electric water purifiers for household purposes; Power filters for water purification [other than machines]; Industrial waste water purification plants; Sewage purification installations; Sewage purification installations; Water purification, desalination and conditioning installations; Rainwater purification installations; Water purifying units for producing potable water; Water purifiers for industrial use; Ionization apparatus for the treatment of air or water; Waste water treatment tanks; Waste water treatment tanks for household purposes; Wastewater treatment tanks for industrial purposes; Water disinfection apparatus; Disinfectant apparatus; Dish disinfectant apparatus for industrial purposes; Sterilization, disinfection and decontamination equipment; Spa pools; Spas [heated pools]; Filters for use with swimming pools; Gas boilers for the heating of swimming pools; Filters for use with swimming pools; Fixed underwater lighting installations for swimming pools; Water heaters; Water softening apparatus; Water ionizers; Water dispensers; Hot water boilers; Water sterilizers; Water treatment units for aerating and circulating water; Sea water desalination plants; Apparatus for decalcifying water; Water intake apparatus; Water distribution installations; Water control valves; Settler apparatus for water; Water filtering apparatus; Water filtering units; Water cooling installations; Water sterilizers; Water purifying apparatus; Water filtering installations; Water conditioning apparatus; Water conditioning apparatus; Water purifying installations; Water conditioning units; Filter boxes for water purification; Coarse strainers for water screening; Industrial-water purifying apparatus; Drinking water supply apparatus; Water ionizers [for household purposes]; Taps for the control of water flow; Filters for sanitary water distribution apparatus; Electrostatic filters for water filtration; Apparatus for filtering drinking water; Transportable instruments for processing water; Water filters for industrial purposes; Tap-water purifying apparatus; Water softening apparatus and installations; Reverse osmosis elements for reducing the brackishness of water; Aquarium sea water purifying apparatus; Ultraviolet sterilization units [water treatment equipment]; Chemical sterilization units [water treatment equipment]; Ultra-violet water sterilisation units for domestic use; Gravimetric dry flow feeders for water treatment; Water pressure reducers [safety accessories]; Water filtering apparatus for industrial use; Water filtering apparatus for domestic use; Water filters [installations] for agricultural purposes; Water filters [installations] for agricultural purposes; Cartridge filtration units [water treatment equipment]; Water treatment apparatus for water softening for domestic use; Reverse osmosis filtration units [water treatment equipment]; Settler apparatus for sewage; Transportable instruments for processing sewage; Wastewater treatment installations; Bioreactors for use in the treatment of wastewater; Sanitary drain armatures for drip pipelines; Sewage purification apparatus
37
Swimming pool cleaning services; Swimming-pool maintenance; Hygienic cleansing [pools]; Installation of water softeners; Repair or maintenance of water purifying apparatus; Repair or maintenance of water purifying apparatus; Septic tank cleaning; Septic tank pumping and cleaning
40
Regeneration of water; Demineralisation of water; Desalination of water; Water purification; Water treatment; Water treatment; Water pollution control; On-site water purification services; Water treatment and purification; Rental of water treatment equipment; Waste and/or water treatment services; Providing information relating to water treatment; Rental of water and air purification equipment; Providing information relating to the rental of water purifying apparatus; Soil, waste or water treatment services [environmental remediation services]; Waste water treatment; Purification of industrial waste water; Industrial treatment of effluents; Treatment of waste water from industrial processes; Treatment of waste water from generating operations
42
Water analysis; Monitoring of water quality; Technical design and planning of pipelines for gas, water and waste water; Technical design and planning of water purification plants; Engineering design; Construction drafting; Construction drafting; Design of pipelines; Design of engineering products; Design of diagnostic apparatus; Scientific and technological design; Engineering design and consultancy; Design of diagnostic apparatus and equipment; Design of engineered building systems; Design and development of engineering products; Design and development of industrial products; Design of industrial plant; Engineering consultancy relating to design; Technical assessments relating to design