Presto stantest private limited offers washometer for iso and aatcc testing for determining colour fastness of textile materials. Presto stantest private limited is an iso 9001: 2000 certified company. The process of determining colour fastness of textile materials is attained by mechanical agitating a specimen of textile in contact with pieces of specified adjacent fabrics in a soap-soda solution, before being rinsed and dried. The change in colour of the specimen and staining of the adjacent fabrics are assessed with standard grey scales. Washometer for iso and aatcc testing has the following technical specifications: