EXPLANATION
The coefficient of friction is related to the slip properties of many commercial articles which have been coated with petroleum wax (e.g., butter cartons and wax impregnated or hot melt coated corrugated board). This test method covers the determination of the coefficient of kinetic friction for a petroleum wax coating or wax-based hot melt coating when sliding over itself.
TEST SUMMARY
A coated surface under load is pulled at a uniform rate over a second coated surface. The force required to move the load is measured, and the coefficient of kinetic friction is calculated.
TEST PRECISION
In the range from 0 to 1.
This test method has no bias because the value of coefficient of friction can be defined only in terms of this test method.