Water Penetration Resistance - Very Low Range For Testing Lab Description and Specifications for Lab Tenders
Water Penetration Resistance Very Low Range For Testing Lab Workshop.
Water Penetration Resistance - Very Low Rang - For Testing Lab
The ability of coated fabrics to successfully resist penetration of
water through their coatings is an important criterion for determining
their suitability for a variety of applications. This determination may
be carried out either by applying a gradually increasing hydraulic
pressure on the coated side and finding the pressure at which the first
drop of water penetrates through the test specimen, or by applying a
fixed known hydraulic pressure on the coated face for a specified
duration of time and finding the time taken by the first drop of water
to penetrate through. Depending on the final use the test specimen is to
be put to, the above determination may be carried out either under a
low pressure or under a high pressure.
In the low pressure method, the test specimen is held over an open well
having a circular opening of 100 cm² area and the pressure is either
increased at a specified rate, or is kept constant at a specified value.
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