01
Chemical preparations for the removal, elimination,
prevention or inhibition of biofilm, micro-organisms or
microbial contamination; chemical preparations for the
treatment of water systems, water cooling towers, air
handling rooms, air handling room surfaces, heating systems,
ventilation systems, air conditioning systems, or parts
thereof; chemical preparations for the removal, elimination,
prevention or inhibition of biofilm, micro-organisms or
microbial contamination in water systems, water cooling
towers, air handling rooms, air handling room surfaces,
heating systems, ventilation systems, air conditioning
systems, or parts thereof
03
Chemical cleaning preparations; chemical cleaning
preparations for water systems, water cooling towers, air
handling rooms, air handling room surfaces, heating systems,
ventilation systems, air conditioning systems, or parts
thereof
05
Chemical preparations for the removal, elimination,
prevention or inhibition of biofilm, micro-organisms or
microbial contamination; chemical preparations for the
treatment of water systems, water cooling towers, air
handling rooms, air handling room surfaces, heating systems,
ventilation systems, air conditioning systems, or parts
thereof; chemical preparations for the removal, elimination,
prevention or inhibition of biofilm, micro-organisms or
microbial contamination in water systems, water cooling
towers, air handling rooms, air handling room surfaces,
heating systems, ventilation systems, air conditioning
systems, or parts thereof; all of the foregoing containing
biostats, biocides, fungicides, bactericides or algicides
37
Cleaning of water systems, water cooling towers, air
handling rooms, air handling room surfaces, heating systems,
ventilation systems, air conditioning systems, or parts
thereof
40
Treatment of water systems, water cooling towers, air
handling rooms, air handling room surfaces, heating systems,
ventilation systems, air conditioning systems, or parts
thereof; treatment of metal surfaces for protection against
corrosion; treatment of metal surfaces in water systems,
water cooling towers, heating systems, ventilation systems
and air conditioning systems for protection against
corrosion; consultancy relating to the treatment of metal
surfaces in water systems, water cooling towers, heating
systems, ventilation systems and air conditioning systems
for protection against corrosion; treatment of water
systems, water cooling towers, air handling rooms, air
handling room surfaces, heating systems, ventilation
systems, air conditioning systems, or parts thereof for the
removal, elimination, prevention or inhibition of biofilm,
micro-organisms or microbial contamination; consultancy
relating to the treatment of water systems, water cooling
towers, air handling room s, air handling room surfaces,
heating systems, ventilation systems, air conditioning
systems, or parts thereof for the removal, elimination,
prevention or inhibition of biofilm, micro-organisms or
microbial contamination