Air Permeability Test Procedure For Fabric

Read and record the individual test results in si units or in.

Air permeability test procedure for fabric.

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. A circle of fabric is clamped into the tester and through the use of a vaccum the air pressire is made. Air permeability tester is the common used to measure it. Place the specimen on the specimen fixing plate i.

This is often referred to as uncontrolled ventilation. How the test works. 1 first of all open the specimen clamp j. Air permeability can be measured by using distinct test protocols for example astm d 737 and iso 9237.

The volume of air passed per second through per unit area of the fabric is called air permeability of fabric. Air permeability tester of textile fabrics complies with astm d737 iso 9237 7231 bs 5636 etc. 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.

The whole testing procedure gets completed in below steps. Air permeability testing apparatus circular test head with a test area of 5 93 square inches 15 07 cm. Fabric air permeability test. When you do air permeability testing for fabric there is different air permeability test method.

Air permeability tester price is competitive.