Cannon-Fenske Routine Viscometer Tube, #150, 7 to 35 cSt, Certified

The most widely used type of viscometer in the petroleum industry, these instruments are both rugged and easy to operate. Requires a minimum bath depth of 8 inches and a sample of approximately 7 mL. Supplied either calibrated at 40°C and 100°C (certified) or uncertified.