PYREX® Double Scale Graduated Cylinders, Class A, TD, Economy
Corning Economy PYREX® Class A graduated cylinders are double-metric calibrated 'To Deliver' (TD) in accordance with ASTM E-1272 and ASTM E-542. The double scale is numbered both up and down and permanently engraved in durable blue enamel. No stopper. PYREX® graduated cylinders are supplied with shock absorbing polyethylene bumper guards. For replacement bumper guards, see Corning No. 3066. Borosilicate Glass Code 7740. Pourout top.