Application:
Air Permeability Testing Machineo determine the resistance of fabrics (woven, knitted and non woven textile materials) to the passage of air (air flow) under constant pre-set air pressure while firmly clamped in the test rig of selected test head/area.
Standard:
ASTM D737 Standard Test Method for Air Permeability of Textile Fabrics
ISO 9237 Textiles - Determination of the Permeability of Fabrics to Air
BS 5636,DIN 53887,AFNOR G07-111,EDANA 140.1,ISO 7231,ISO 9073-15,JIS L1096-A
TAPPI T251, WSP 070.1.R3, EDANA 140.2-99
Technical parameters:
Measuring range | 0.1-12,000 mm/s at 20 cm² test area. |
Units of measure | mm/s, m3/m2.min, cm3/cm2.s, m3/m2.h, cfm, L/dm2.min, L/m2.s |
Measuring accuracy | better than ± 2 % of the displayed value |
Test pressure | 1-4,000 Pa |
Test areas | 20, 25, 38.5 and 100 cm² |
Sample thickness | 12mm |
Dimensions | 1070 x 670 x 1080 mm |
Power supply | 110V,60Hz |
Weight | 75 Kg |
Accessories:
1. Main Unit | 01 No. |
2. Test Heads | 02 Nos. |
20 cm²for DIN 53887, EN ISO 9237, WSP 70.1 | |
38.5 cm²for ASTM D 737, JIS L 1096-A, TAPPI T 251, WSP 70.1 | |
3. Air Permeability Tester Labcloud | 01 No. |
4. Calibration Check Plate | 02 Nos.(ΦO=7.8 and ΦO=21.6 ) |
5. O-Ring for Air Seal | 01 No.(pack of 5) |
6. Nozzle | 11 Nos. |
7. Power Cord | 01 No. Nozzle |
8. This User's Manual | 01 No. |
9. Inspection & Conformance Certificate | 01 No. |
No. | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
ΦO(mm) | 0.8 | 1.2 | 2 | 3 | 4 | 6 | 8 | 10 | 12 | 16 | 20 |
TEST PROCEDURE
1.Test the conditioned specimens in the standard atmospherefor testing textiles, which is 21±1°C (70±2°F) and65±2 % relative humidity, unless otherwise specified in amaterial specification or contract order.
2. Handle the test specimens carefully to avoid alteringthe natural state of the material.
3. Place each test specimen onto the test head of the testinstrument, and perform the test as specified in the manufacturer’soperating instructions.
4. Place coated test specimens with the coated sidedown (towards low pressure side) to minimize edge leakage.
5. Make tests at the water pressure differential specifiedin a material specification or contract order. In the absence ofa material specification or contract order, use a water pressuredifferential of 125 Pa (12.7 mm or 0.5 in. of water).
6.Read and record the individual test results in SI units ascm³/s/cm² and in inch-pound units as ft³/min/ft² rounded tothree significant digits.