Corning® Pyrex® 200mL graduated pourout cylinders calibrated "to contain" in percent. 200mL is equal to 100% in 1% divisions. The scale is in durable white enamel. This cylinder may be used to measure the distillate in ASTM method D-86 "Distillation of Gas Oil and Similar Distillate Oil." Furnished with bumper guard. For replacement bumper guards, see Cat.No. 1-3066. Serialized and certified Class A. Reusable.