TEST METHODS ARE DELIVERED AS A LINK IN YOUR EMAILED RECEIPT.
AATCC TM42-2017e, Test Method for Water Resistance: Impact Penetration t
Developed in 1945 by AATCC Committee RA63 (revised 2017).
1. Purpose and Scope
1.1 This test method is applicable to any textile fabric, which may or may not have been given a water-repellent finish. It measures the resistance of fabrics to the penetration of water by impact, and thus can be used to predict the probable resistance of fabrics to rain penetration resistance of garment fabrics.
1.2 The results obtained with this test method depend on the water repellency of the fibers and yarns and on the construction of the fabric.
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The above information is only a summary of the AATCC test method.