Solutions, laboratory reagents and solvents in the nature of chemical substances for analyses in laboratories for scientific or medical research use, included in this class, for analyzing residues, in particular in the fields of analytical sciences and biochemistry, genetic measurements, veterinary diagnosis, forensic analysis and food analysis, namely, residues of non-matrix-materials certified for purity and concentration, solid or liquid inorganic compounds and elements, gases, solid or liquid small organic molecules, organic macromolecules, isotopically labelled materials, food, agriculture matrix materials certified for composition, potable water and beverages, animal matter, plant and vegetation matter, processed food and foodstuffs, animal feeding stuffs, for analyzing residual matter of environmental and related matrix materials certified for composition, river-, sea- and ground waters, waste, effluents, sludge, plant and vegetation matter, animal bioindicator matter, fly ash, fuel ash and incinerator ash, health-related matrix materials certified for composition, human body fluids, namely, serum, urine, human tissue, hair, bone and teeth, industrial and engineering materials certified for composition, ferrous alloys, non-ferrous alloys, polymers, plastics, glasses, ceramics, minerals, ores, rocks, clays, fuels, coal, diesel and semiconductors, material certified for mechanical properties, hardness, impact, toughness and viscosity, optical properties, wavelength and absorbance materials, thermal properties, thermal conductivity, calorific value, morphological properties, particle size and surface area in the field of analytical sciences and biochemistry, genetics and food analyses; solutions, laboratory reagents and solvents in the nature of chemical substances for analyses in laboratories other than for medical purposes, included in this class, used in the fields of research into environmental management, DNA testing and analytical molecular biology, namely, reagents for scientific and research use, biochemical reagents used for non-medical purposes, research and analytical reagents for industrial scientific use, reagents for scientific use in scientific apparatus for chemical or biological analysis, chemicals, namely, buffer and standard solutions used in analytical chemistry, analytical diagnostic reagents for in vitro use in biochemistry, clinical chemistry and microbiology