Also known as zahn cups these testers let you calculate viscosity based on the speed at which a liquid drains through a cup with a hole at the bottom.
Zahn viscosity flow cups.
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The ez viscosity cup series is a logical and necessary outgrowth of the standardization studies on the zahn signature and similar cups for the promotion of this most popular type of viscosity measuring instrument as a national and international standard.
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The only forces at work are gravity causing the flow and the hole size and gauge of the cup.
Viscosity is determined by the time required for a definite volume of liquid to flow through the orifice.
Get it as soon as thu sep 24.
The zahn viscosimeter is a bullet shaped corrosion resistant stainless steel cup with a precision drilled orifice.
Use the included formula to convert seconds.
To determine viscosity dip the cup in a liquid until it is completely filled lift the cup out of the liquid and time how many seconds it takes for the liquid to drain out of the hole in the bottom.
Five sizes are available for use on very thin oils to extremely heavy mixtures 20 1200 centipoise.
The zahn cup s reading could be less sensitive than an automated viscometer employing a higher shear methodology.
A preset volume of fluid draining through a set hole size.
The size of the hole is in mm and a zahn 4 means a zahn cup with a 4mm hole.