The air permeability tester for protective clothing is suitable for the air permeability of various textiles, including industrial fabrics, non-woven fabrics, protective clothing and other breathable products. It is a testing equipment independently developed and produced by Shanghai QINSUN Precision Electromechanical Technology Co., Ltd. High cost performance and complete after-sales service.
IOS 5453 - 1997 Determination of air permeability of textile fabrics
Place the pre-treated sample between the upper and lower test chambers, clamp them, and first test the low-pressure chamber (lower chamber)) for vacuum treatment and then evacuate the entire system. When the specified vacuum degree is reached, close the lower test chamber, fill the high-pressure chamber (upper chamber) with a certain test gas pressure, and make surethat a constant pressure is created on both sides of the sample The pressure difference (adjustable), so that the gas will penetrate from the high pressure side to the low pressure side under the influence of the pressure difference gradient and through the monitoring, and processing of the internal pressure of the low pressure side, can be different barrier parameters of the tested sample are obtained.
How to use:
01. Press It is required to prepare the sample and cut it to the specified size.
02. Select the sample fixed value circle and install it on the instrument.
03. Select the mouthpiece.
04. Power up the instrument.
05. Set parameters.
06. Press the start button to start the instrument.
07. Firmly press the sample and start the test. When the set differential pressure is reached, the sample is automatically released and convertedinstrument automatically reads the test result and stops.
08. Run the test of the next sample until the number of effective tests reaches the requirement (the number of times the display screen is currently the number of tests) per IOS 5453-97 for data processing.
09. The test results can be viewed on the airflow/pressure differential display and can also be printed.
10. At the end of the test, turn off the power, clean the instrument and all accessories, remove the fixed value ring and place it in the spare parts drawer.