Air Permeability Test Procedure For Fabric

1 first of all open the specimen clamp j.

Air permeability test procedure for fabric.

Read and record the individual test results in si units or in. The volume of air passed per second through per unit area of the fabric is called air permeability of fabric. Air tightness also known as air leakage air infiltration or air permeability testing is a quick non invasive procedure put in place to measure the total air lost through leaks in the building fabric. The whole testing procedure gets completed in below steps.

A circle of fabric is clamped into the tester and through the use of a vaccum the air pressire is made. To minimize air edge leakage. Air permeability can be measured by using distinct test protocols for example astm d 737 and iso 9237. Air permeability tester price is competitive.

It is used to test the resistance of the flow of air through fabrics. Fabric air permeability is a nature of air passing through fabric normally under the situation that two sides of fabric exist pressure difference that is to say it is speed that airflow vertically goes through fabric in a prescribed test area pressure drop and time whose unit is mm s or m s. Now tighten the specimen clamp securely. According to these test methods the airflow through a given area of fabric is measured at a constant pressure drop across the fabric.

How the test works. When you do air permeability testing for fabric there is different air permeability test method. Air permeability tester is the common used to measure it. Air permeability tester of textile fabrics complies with astm d737 iso 9237 7231 bs 5636 etc.

This is often referred to as uncontrolled ventilation.