[Features] Used to measure a fixed volume. Also called a volumetric flask. It consists of a flat-bottomed flask with a long, narrow neck that usually has a single wire in it. Because the diameter of the neck where the graduations are located is narrow, the graduations are more accurate than those of a measuring cylinder of the same capacity. It is used to precisely adjust the concentration of a reagent. The scale indicates the volume to be received (volume contained), and is marked with TC, which stands for To Contain. The scale indicates the volume when water at 20°C is measured. Complies with the "volume tolerance" of JIS standard (R3505) Class A.
[Applications] As a glass laboratory utensil for measuring a fixed volume of solution.