Perspiration tester is to determine the resistance of the color of textiles of all kinds and in all forms to immersion in water, perspiration, sea water, saliva and other solutions.

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A specimen of the textile in contact with either two single-fiber adjacent fabrics or a multifiber adjacent fabric is immersed in solutions, drained and placed between two acrylic resin plates under a specified pressure (Loading weights: 8lb for AATCC and 9lb for ISO) in a test device and then place the device containing specimen in preheated oven for specific temperature and time.