Chemicals for use in industry and science, namely chemical preparations in the treatment of plants and soils; chemicals for use in the treatment of rivers, ponds, swimming pools, spa waters, tap waters and bottled waters; diagnosis preparations adapted for scientific use; enzymes, namely, proteases zinc metallopeptidases, phosphatases, and kinases, meant to be used in diagnosis products adapted for a scientific, medical or veterinary use, or for research; enzymatic or cellular preparations ad...