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AIR PERMEABILITY TESTER
DIGITAL MODEL  |
ANALOGUE/MANOMETER MODEL |
The “ASIAN” Air Permeability Tester for textiles consists of an arrangement for holding the test specimens between two flat faces so as to expose a known area to the flow of air through it, a vacuum system to draw air through the exposed area of the test specimens. There is an arrangement to measure the volume of air flowing through the test specimen, and arrangement to measure the pressure drop between the faces of the test specimen.
The test specimen is hold between two round-shaped grips. The grips are lined with rubber gasket to avoid the leakage of air through the edges. The two grips can be held the test specimens with the help of a hand operated screw mechanism.
The vacuum needed to draw the air through the test specimens is created with the vacuum pump supplied with the instrument. The vacuum pressure is measured by the digital manometer (or manometer tube) in terms of mm of water level & airflow is measured by the Rotameters attached with the instrument. The equipment is metallic paint & bright chrome plating finish for corrosion resistant finishing.
TECHNICAL DATA
Test Area : 4 cm2 and 10 cm2
Rota meter : 6.0 –60 LPH at NTP
(Accuracy 3% of FSR) 90 –900 LPH at NTP
300 –3000 LPH at NTP
Vacuum gauge : 0 to 24 mm X 0.1 mm of water column.
(Inclined tube type for analogue model)
(Digital with vacuum sensor type for digital model)
Power Required : 230 VAC, 50Hz, Single phase
(110 VAC, 60Hz, Single phase also available)
RELATED STANDARD
IS: 11056- 1984 : Method for determination of air permeability of fabrics.
DIN 53887 : Testing of fabrics determination & the air permeability of fabrics.
ASTM-D-737-96 : Standard Test Method for Air Permeability of Textiles fabrics.
BS-5636, ISO 9237