Test Method 127-2008
Resistance: Hydrostatic Pressure Test
in 1968 by AATCC Committee RA63
Purpose and Scope
This test method measures the resistance of a fabric to the penetration of water
under hydrostatic pressure. It is applicable to all types of fabrics, including
those treated with a water resistant or water repellent finish.
Water resistance depends on the repellency of the fibers and yarns, as well as
the fabric construction.
1.3 The results obtained by this method may
not be the same as the results obtained by AATCC methods for resistance to rain
or water spray.
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