S90 Signature Zahn Viscosity Dip Cups are an improved version of the time honored Zahn Signature viscosity cups, calibrated with standard "G" series oils traceable to the National Institute of Standards & Technology

Easily measure viscosity using an EZ™ Zahn viscosity dip cup and a stopwatch. Simply fill the cup by immersing it in the test liquid, withdraw and measure the time it takes until the first break in the liquid stream.

Ford viscosity dip cups are compatible with ASTM D 1200 and used to provide a quick viscosity measurement on the shop floor or on site.

ISO viscosity dip cups are compatible with/similar to ISO 2431 and used to provide a quick viscosity measurement on the shop floor or on site.