Viscometer Cannon Fenske Reverse Flow

The Cannon-Fenske Reverse Flow Viscometer is a versatile and precision glass instrument designed for the accurate measurement of kinematic viscosity in both transparent and opaque Newtonian liquids. Manufactured in accordance with ASTM D446, this viscometer features a reverse flow design that facilitates timing in the return leg—ideal when direct visual observation is limited or not possible.

Constructed from durable borosilicate glass, the viscometer incorporates a precisely calibrated capillary section and timing marks optimized for use in constant-temperature baths. The reverse flow configuration ensures reliable and repeatable measurements, making it suitable for applications in the petrochemical, lubricant, pharmaceutical, and food industries where liquid transparency may vary.