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CAT NO: DIDACTICNLE-Export-970001
Perspirometer For Testing Lab Workshop.
Perspirometer - For Testing Lab
Colorfastness of dyed or printed fabrics against perspiration is
determined by exposing the fabric sample to the action of both alkaline
and acidic reagents while in contact with undyed fabrics on both sides.
The test specimens, held between two white adjacent fabrics, are placed
between plastic plates under a fixed load inside a hot air oven
maintained at 37° C. The apparatus used for this test is called the
perspirometer.
The Perspirometer consists of a metallic loading frame and a set of acrylic plates which can be kept in the loading frame.
The
loading frame consists of two steel plates separated from each other by
four mild steel rods. A set of two mild steel plates held together by
means of distance pieces and springs with a dead weight are provided to
apply a constant force on the test specimens placed between acrylic
plates.
Technical Data
Dimensions of test specimens : 10 cm x 4 cm
Force on test specimens : 5 kg
Dimensions of acrylic plates : 11.5 cm x 6.0 cm
Number of acrylic plates : Sixteen
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