ISO 9073-16
Textiles -- Test methods for nonwovens -- Part 16: Determination of resistance to penetration by water (hydrostatic pressure)
ISO 9073-16:2007 describes the hydrostatic pressure test that measures the resistance of nonwoven fabrics to the penetration of water under varied hydrostatic head pressures.
ISO 9073-16:2007 applies to any nonwoven fabrics which are intended for use as a barrier to the penetration of fluids.