1 Chemicals for scientific or research use, namely, solutions, laboratory reagents and solvents for analyzing residual matter 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; chemicals for scientific or research use, namely, solutions, laboratory reagents and solvents used for cryogriding, freeze drying, high purity milling, ultrafine classification and levitation melting in the fields of environmental science, genetics and analytical molecular biology