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RH-TQZ500 Fabric Air Permeability Tester adopts the latest technology and the most versatile test method. It is an ideal instrument for testing the permeability of leather, cloth, fabric, paper, cardboard or other sheet. RH-TQZ500 Fabric Air Permeability Tester is a fully integrated automatic instrument. The test method takes into account various methods such as Schopper method, Bentsen method and Gurely method etc.
Working Principle:
According to the principle of pressure difference method, place the pre-processed sample between the upper and lower test heads. A constant pressure difference is formed on both sides of the sample. Under the action of pressure difference, the air flows from the upper test head through the sample to the lower test head, and the air permeability of the sample is calculated according to the area, pressure difference and flow rate of the sample.