Apparatus and instruments for industrial and scientific studies in laboratories in particular electrical and optical analysis devices; chemical products for industrial and scientific purposes; devices and test components for analytical studies of human and animal samples in particular, blood, urine, stool and other bodily fluids, for the analysis of agricultural products for environmental analysis, toxicological purposes; test kits consisting of reaction vessels, in particular, coated reaction vessels, eg, microtitration plates or reaction tubes, reagents reagent mixtures, substrates, buffer substances, in particular, solutions for the performing of analyses eg, buffer solutions, control solutions, substrate solutions, stopping reagents; test strips and test equipment that contain the solutions for the performing of analytical reactions for environmental analysis, toxicological analysis, foodstuff analysis, pharmacological analysis, as well as for medical and veterinary medicine purposes; Reaction vessels for diagnostics and analysis chemical, biochemical and biological products for the performing of analytical studies; Devices for the collecting of samples for medical purposes; devices for the collecting of samples for scientific purposes; Diagnostics items, reagents and reagent mixtures for the medical and veterinary medicine field; Chemical, biochemical and biological products for the performing of analytical studies, in particular, for the diagnosis of bodily excretions; Performing of diagnostic and analytical procedures, in particular, for environmental analysis toxicological analysis sis, foodstuff analysis, pharmacological analysis