C1027 Surface Abrasion This test is for glazed tile only. It is based on the P. E. I. Rating system (Porcelain Enamel Institute). A number of sample pieces are subjected to rotation with an abrasive material on their surface (contained in a cup). After a certain number of cycles a specimen is removed. This is repeated after eight subsequent rotations (100, 150, 600, 750, 1500, 2100, 6000, and 12,000). The tile that shows no wear at 12, 000 cycles is then subjected to a staining test. If it passes that test it is classed as a grade V tile. Each test piece is then compared to a new piece and if visible wear is seen in a viewing box, the tile is considered to have not passed that level. There are six ratings that can be achieved by this method (0 to V). The recommended areas of use for these levels are:
0. Decorative only with no use on floors. I. Light foot traffic without scratching dirt and direct outside access, such as in a residential bath II. Residential areas but without exposure to abnormal footwear or outside access. III. Normal residential areas and normal footwear and traffic. IV. Commercial foot traffic such as entrances, kitchens, offices and sales rooms. V. Areas subjected to severe pedestrian traffic such as airports, shopping centers, hotel foyers, public walkways, and industrial applications |