1
Chemical substances, chemical materials and chemical preparations, and natural elements; Filtering materials [chemical, mineral, vegetable and other unprocessed materials]; Filtering media [mineral substances]; Ceramic materials in particulate form, for use as filtering media; Filtering compositions; Filtering materials consisting of chemical substances; Filter aids for liquid purification; Chemical cleaning agents for use in industrial manufacturing processes; Chemical cleaning agents for use in industrial processes; Acidic and alkaline cleaning preparations for use in membrane filtration installations; Releasing agents [chemical]; Scale inhibitors, namely chemical solutions for preventing deposits on membranes in filtration installations
7
Filtering machines, separators and centrifuges; Waste management and recycling machines; Filtering machines used in sewage handling; Filters [parts of machines or engines]
11
Sanitary installations, water supply and sanitation equipment; Water purification, desalination and conditioning installations; Filters for industrial and household use; Industrial water treatment installations; water filters and purifiers; Regulating and safety accessories for water installations; Installations and apparatus for the treatment, processing, purification and recycling of water, drinking water and waste water; Apparatus and installations for purifying household and industrial waste water; Apparatus and installations for treating water by water desalination or softening; Apparatus and installations for filtering liquids, in particular water, drinking water or waste water; Installations for cleaning contaminated process and wastewater; Microfiltration and ultrafiltration installations for use in the drinking water sector and in the wastewater sector; Nanofiltration installations for use in the water treatment sector, in particular for softening drinking water, and for recovering reusable materials by separating water constituents; reverse-osmosis vessels
37
Installation, assembly, commissioning, maintenance, servicing and repair of apparatus and installations for the treatment, processing, purifying and recycling of water, drinking water and waste water
40
Filtration of liquids; Operation of water purifying, desalinating and treatment installations; Operation of installations for treating, processing, purifying and recycling water, drinking water and wastewater
42
Science and technology services; Industrial analysis and research services; Consultancy relating to filtration technology, Technological consultancy in the water purification, desalination and treatment sector; Testing, authentication and quality control; Testing of filtering installations; Project development, planning and engineering in the field of the treatment, processing, purifying and recycling of water, drinking water and waste water