Corning® PYREX® 250mL VISTA™ single metric scale Class A graduated cylinder is calibrated 'To Contain' (TC) and has blue enamel graduations. The 250mL size has a pourout top. The 250mL cylinder capacity is in accordance with ASTM E-1272. Graduated. Non-sterile. No stopper. No bumper guard. Capacity: 250mL. Material: borosilicate glass code 7740. Cylinder style: graduated. Graduation color: blue enamel. Cylinder feature: Class A. Cylinder scale: single metric 'To Contain' (TC). Top style: pourout. Reuseable. 12/Case. . Corning® #: 70022-250.