Perspiration Tester

Perspiration Tester for testing the colour fastness of textiles to perspiration and yellowing.
The Perspirometer applies a specified pressure to a series of test specimens separated by acrylic or glass plates.
The Perspirometer is used to determine colour fastness to perspiration, cold water and sea water. The same instrument is employed to predict the potential of white or pastelcoloured textiles to yellow in transit or storage. After insertion of the specimens, the Perspirometer is transferred to an Incubator for a pre-determined period. Following incubation, the Perspirometer is removed and specimens are graded using grey scales.