Volumetric flask is a part of laboratory glassware used in analytical chemistry for the preparation of solutions. It is made of glass of plastic and consists of a flat bottomed bulb with a long neck, usually fitted with a stopper. The stopper. Is normally made in a  chemically resistant plastic such as polypropylene rather than glass. The neck has a single ring graduation mark and a label.  The label should show the nominal volume, tolerance, calibration temperature, class, relevant manufacturing standard and the manufacturer’s logo.

A separating funnel, also know as separation funnel, separatory funnel, or step funnel, is a laboratory glassware used in liquid extractions to separate (partition) the components of a mixture between two immiscible solvent phases of different densities.

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