Perspirometer

Presto Perspirometer is used for determining the resistance of color, of all kinds and forms textiles, to the action of human perspiration. Color Fastness 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 un-dyed adjacent fabrics, placed between plastic plates under a fixed load inside an oven.
To test colour fastness to perspiration, specimens (fabric, yarn or fibre) in contact with Multi-fibre Adjacent Fabric, are treated in two different solutions containing histidine, one alkaline and one acidic. The Perspirometer applies a specified pressure to a package of test specimens separated by acrylic or glass plates. The spring loaded mechanism ensures that the correct pressure is maintained when the loading Weight is removed. Two loading weights are available to accommodate the requirements of the ISO and AATCC test methods. Manufactured from high grade stainless steel.