The capacity tolerance on this 10mL Corning Pyrex buret is established by ASTM E-287. It is calibrated in accordance with ASTM E-542. Tip is carefully drawn from accurate bore tubing to insure proper drainage rates. This buret has colored markings, fine, sharp lines and large easy-to-read numbers. The stopcock barrel has a smooth micro-finish to assure leak resistant performance. Each buret is supplied with a dust cover and a 2mm bore PTFEstopcock plug. Material: Borosilicate Glass Code 7740. Capacity: 10mL. Tolerance +/-: 0.02mL. Stopcock Style: Straight Bore Teflon. Stopcock Bore No.: 2. Height: 560mm (approx). Outer Diameter: 9mm (approx). Corning#: 2103-10.