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ISO 9073-11 describes test methods for measuring the quantity of test liquid (simulated urine) which runs down a nonwoven test piece when a specified mass of test liquid is poured on to the nonwoven test piece superimposed on a standard absorbent media and placed on an inclined plane.

This test method is designed to compare run-off of nonwovens. It is not intended to simulate in-use conditions of finished products.

Three alternative methods are described:

Test I -- the basic method for testing hydrophilic nonwovens;

Test III -- the repeated test, with the same test parameters as in I);

Test III -- the modified method for testing hydrophobic nonwovens specifying another table inclination than in I).