PYREX® 100 mL Oil Conical Centrifuge Tube Lifetime-Red™ with White Graduations manufactured by Corning is used in accordance with standard methods of testing for water and sediment in petroleum products. They have white graduations against a permanent red panel for easier reading. Graduated upward to 0.5 mL in divisions of 0.05 mL; from 0.5 mL to 2 mL in divisions of 0.1 mL; from 2 mL to 3 mL in divisions of 0.2 mL; from 3 mL to 5 mL in divisions of 0.5 mL; from 5 mL to 10 mL in divisions of 1 mL; from 10 mL to 25 mL in divisions of 5 mL and at 50, 75 and 100 mL.