Scientific apparatus, instruments and devices, namely test tubes, chromatography columns, centrifuges, homogenizers, syringes, pipettes, pipette tips, culture plates, dishes, flasks especially for research and examination purposes; laboratory equipment, namely test tubes, chromatography columns, centrifuges, homogenizers, syringes, pipettes, pipette tips, culture plates, dishes, flasks for the purification and isolation of biopolymers from biological or biochemical sample material