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Protective clothing breathability tester is suitable for a variety of textiles including industrial fabrics, non-woven fabrics, protective clothing and other breathable products breathability, is Shanghai Qianshi Precision Electromechanical Technology Co.
, Ltd.
independent research and development and production of testing equipment, cost-effective, after-sales service is complete
.
Test standard: GB/T 5453-1997 Textile Determination of fabric air permeability Test principle: The pre-processed specimen is placed between the upper and lower test chambers, clamped, first of all, the low pressure chamber (lower cavity) is vacuumed, and then the entire system is evacuated, when the specified vacuum degree is reached, the test chamber is closed, and a certain pressure test gas is filled into the high pressure chamber (upper cavity), and a constant pressure difference (adjustable) is guaranteed on both sides of the specimen, In this way, under the action of the differential pressure gradient, the gas will penetrate from the high pressure side to the low pressure side, and the internal pressure of the low pressure side will be monitored and processed, so as to obtain the barrier parameters
of the test sample.
How to use: 01、Prepare the specimen as required and cut to the specified size
.
02.
Select the specimen setting ring and install it on the
instrument.
03.
Select the nozzle
.
04.
Turn on the power supply
of the instrument.
05.
Set the parameters
.
06.
Press the start button and the instrument starts
.
07.
Press the specimen, start the test, and when the set pressure difference is reached, the specimen is automatically released, and the instrument automatically converts the test result and stops
.
08.
Conduct the test of the next specimen, until the effective number of tests reaches the requirements (the number of times the display is currently the first test) according to GB/T 5453-97 for data processing
.
09.
The test results can be observed on the air permeability/differential pressure display and can also be printed
.
10.
At the end of the test, turn off the power supply, clean the instrument and accessories, and remove the value ring into the spare parts drawer
.
