Volumetric Flask for Laboratory is manufactured from borosilicate glass and consists of a flat bottomed bulb with a long neck, usually fitted with a stopper. The Volumetric Flask is generally colourless but may be amber coloured for handling light sensitive compounds such as silver nitrate or vitamin A. The Volumetric Flask is available in varying sizes ranging from 10 ml to 5 litres. The Volumetric Flask for Laboratory is used in analytical chemistry for the preparation of solutions.