Complete Guide to Air Permeability Tester

Air permeability is a widely used test that measures the ease with which air can pass through a fabric and helps to indicate the air permeability of the fabric, especially for wind-proof, weather-resistant, and water-resistant fabrics.

YG461F Fully Automatic Air Permeability Tester is used to determine the air permeability of fabric automatically. The wide measuring range covers all kinds of knitted, woven, non-woven, coated fabrics, paper, film, leather, etc.

Test principle

Test principle is: according to the specified standards and test parameters, the specimen is secured into the test head of clamping system without distortion and minimal leakage, and then the suction system adjusting the airflow rate that preferably provides specified pressure differentials between the two surfaces of the specimen being tested, and then the air permeability of the specimen is measured. Air permeability refers to: under the specified pressure difference between the two sides of the fabric, the air flow rate per unit area of the fabric vertically in unit time; In the case of differential pressure between the two sides of the fabric, the performance of air transmission is called air permeability.

Working principle

The specimen is fixed to the test area by the clamping handle of the device. Press down the clamping handle, the machine can start test automatically, a strong suction pump begins to draw air through the interchangeable test head in a circular opening. After the preset test pressure is automatically reached and maintained for a few seconds, the air permeability value of the test specimen is displayed in the preset measurement unit. After pressing the clamping handle again, the specimen is released.
​Get more details about the tester

Features of YG461F air permeability tester

  • New upgrade: The automatic design principle greatly improves the test speed and working efficiency. The appearance of the equipment is completely redesigned and the control technology is fully upgraded;
  • Control accuracy: Automatic positioning aperture, no human error, more accurate and fast. There are 8 different apertures on the orifice plate; it selects the applicable size according to the fabric permeability performance;
  • Intuitive Automatic ranging system detects the size of the Orifice and determines the appropriate pressure range;
  • Simple operation: using color touch screen, concise and elegant, easy to operate;
  • Show straightforward results in the unit of your choice; Unit: mm/s, L/m2/ s, cm3/cm2/s, dm/min, L/dm2/ min, m/min, m/h, cfm;
  • Equipped with a calibration plate, user can do simple calibration if the result is far from the standard value.
  • Micro printer for the output of test results;
  • Quiet and powerful suction system accommodates a variety of test heads;
  • Single press and release the test head to press or release the specimen conveniently;
  • Fume wheel feet, the tester can be moved at will.

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