FEC(World Class Testing Equipment)

1. Catalogue of Air Permeability Tester
FEC
R
World Class Testing Equipments
An ISO 9001 Certified Co.

2. Air permeability called of a fabric to allow passage of air through it under the effect of a different in
pressure across its two faces. It is defined as the volume of air passing through a defined area under a
specified pressure difference over a known period of time. It is a very important property for fabrics which
are used under conditions where it is necessary to know precisely the amount of air passing through it.
Air Permeability Tester
RELATED STANDARDS
Test area Rotameters 10, 20, 50 and 100 cm2
9 to 90, 65 to 650, 360 to 3,600 and Optional 1,940 to 19,400 lph at NTP (accuracy
+3% of FSR in each range)
Pressure indicator Electronic type with a pressure transducer and digital display to measure and
indicate pressure upto 999 mm water column (least count 1 mm)
TECHNICAL DATA
IS 11056 - 1984 Method for Determination of air permeability of Fabrics
DIN 53887 Testing of Textiles - Determination of the Air Permeability of fabric
RELATED STANDARD
The test specimen is held between two annular ring shaped grips. The grips are lined with rubber gaskets to
reduce flow of air through the edges. The two grips can be brought in contact with each other with the help of a
hand operated screw arrangement. The test area can be altered by placing adapter discs of different openings
in the grips.
The vacuum needed to draw air through the exposed area of the test specimen is created with the help of a
vacuum pump supplied with the equipment. The volume of air passing through the test area is measured with
the help of a set of rota meters. A digital pressure indicator is provided to indicate the difference in pressure
between the two faces of the test specimen.
The equipment is assembled over a sheet metal panel and is finished in grey hammertone stoving painting and
bright chrome / zinc plating to give it a corrosion resistance finish.
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