Chemical substances for analyses in laboratories, other than for medical or veterinary purposes; Chemical preparations for analyses in laboratories as solvents, other than for medical or veterinary purposes; Chemical reagents for research laboratory use, other than for medical or veterinary use; Biochemical preparations for research laboratory purposes; Chemical additives for paints and surface coverings; Chemical additives for use in the manufacture of coatings; Solvents for varnishes; Chemi...