01
Chemical products for use in industry; heavy water; potash
water; additives, chemical, to insecticides; additives,
chemical, to fungicides; filtering preparations for the
beverages industry; oil dispersants; petroleum dispersants;
bases [chemical preparations]; toxic gas neutralizers;
bacteriological preparations other than for medical and
veterinary use; biological preparations, other than for
medical or veterinary purposes; chemical preparations to
prevent mildew; chemical compositions for water treatment;
water-softening preparations; salts [chemical preparations];
salts for industrial purposes
11
Regulating and safety accessories for water apparatus;
regulating accessories for water apparatus and/or pipes;
safety accessories for water apparatus; ionization apparatus
for the treatment of air or water; water purifying apparatus
and machines for hospital equipment; water purifying
apparatus and machines for hotel and accommodation
facilities; sanitary apparatus and installations; water
filtering apparatus; water intake apparatus; hydrants; clean
chambers [sanitary installations]; filters for drinking
water; watering installations, automatic; water conduits
installations; water distribution installations; water
purifying installations; washers for water taps; taps
[faucets]; mixer taps for water pipes; taps [faucets] for
pipes; water heaters
37
Repair; installation services; construction; disinfecting;
machinery installation, maintenance and repair; pump repair
40
Water treatment and purification