Zahn Cup


Zahn Cup is a small U-shaped cup suspended from a looped wire.

This method is ideal for measuring the consistency of paints, varnishes and similar products.

Simply dip the cup into the product to be measured, lift it out and measure how long it takes for the contents to empty through the orifice.

Each cup has a 12-inch loop handle to allow the cup to be dipped by hand into a liquid container.

At the center of this handle is a finger-ring for holding the cup in a vertical position during use.

Results should be reported in Zahn-Seconds at a specified temper- ature for a particular cup.

To convert Zahn-Seconds to centistokes, refer to ASTM D 4212.

Centistokes x Specific Gravity = Centipoise

Centistokes = K * (efflux time – C)


Cat.No Orifice (mm) Range(cSt) Range(sec)
10241 2.0 5-20 20-80
10242 2.74 20-250 20-80
10243 3.76 100-800 20-80
10244 4.26 200-1200 20-80
10245 5.28 400-1800 20-80
10246 8.0

Technical Data.

Cup made of SS,44ml
Orifice made of SS,Fixed
Handle made of SS
Standards ASTM D 1084,D 4212
Weight 75g
Width 35mm
Height 56mm
Total Length 350mm

Comes Complete With:

Zahn Viscosity Cup

Application Manual

Storage Box