Water-softening preparations; chemical preparations for use in water purification, namely, chemicals for use in purification of water; activated carbon; filtering preparations for the beverages industry, namely, chemical preparations in the nature of filtering materials in the beverage industry; biochemical catalysts; beer-clarifying and preserving agents, namely, beer preserving agents; carbon for filters; catalysts for chemical and biochemical processes; purification preparations, namely, chemicals for use in purification of water; must-fining preparations, namely, water-softening preparations; chemical products for laboratory analysis and not for medical use, namely, chemical preparations for analyses in laboratories, other than for medical or veterinary purposes; industrial chemicals; enzyme preparations for industrial purposes, namely, enzyme preparations for use in the water treatment industry; filtering materials, namely, ceramic particles for use as a filtering media in the treatment of water; chemical preparations; toxic gas neutralizers; ion-exchangers, namely, ion-exchange resins