Problem solved Hydrostatic Pressure Test for Fabric

[fyitester]

The hydrostatic pressure resistance index is one of the most important indicators of waterproof and breathable fabrics. Hydrostatic pressure refers to the resistance water encounters as it passes through fabric. Under standard atmospheric pressure conditions, the fabric is subjected to continuously rising water pressure. Until water droplets seep out from the back of the fabric, at this time, the measured water pressure value is the hydrostatic pressure. The more hydrostatic pressure a fabric can withstand, the better its waterproofness or resistance to leakage.
https://fyitester.com/hydrostatic-pressure-test/