PACKINGS AND COLUMNS USED FOR CHROMATOGRAPHY METHODS IN CHEMISTRY AND BIOCHEMISTRY

CHEMICAL PRODUCTS FOR INDUSTRIAL USE, NAMELY, CRUDE PLASTICS IN THE FORM OF POWDERS, GRANULES, CHIPS, DISPERSIONS, LIQUIDS, OR PASTES FOR MANUFACTURING USE IN THE PLASTICS INDUSTRY; ARTIFICIAL RESINS AND SYNTHETIC RESINS IN THE CRUDE STATE FOR MANUFACTURING USE IN THE PLASTICS INDUSTRY; CHEMICAL COMPOUNDS FOR USE AS AUXILIARIES IN THE MANUFACTURE AND PROCESSING OF PLASTICS