To determine the resistance to pilling and surface change of the textile fabric, abrasion test is to be conducted on the fabrics under test. Determination of resistance of any fabric to abrasion is usually carried out by abrading the fabric under specified conditions against a standard abradant. Although plane abrasion of fabric surface does not cover all aspects of strains that are important in determining service life, there are occasions when such a test gives useful information. With 4 nos. circular abrasion tables circular specimen of fabric are abraded under known pressure under a motion which is the resultant of too simple  harmonic motion at right angle to each other the resistance of abrasion is estimated by visual appearance or by finding the loss in mass of the specimen.