Best 168 opus entrance mat. Opus is part of the AquaTRU series of entrance mats that offer truer size options for a better value. Intended for use in medium to heavy traffic areas, the non-directional diamond pattern of Opus aggressively scrapes and cleans, while the rubber-edged perimeter entraps dirt and moisture for superior water and soil control. Molded rubber cleats on the underside of the mat grip the underlying surface minimizing mat movement. 3/8" pile height to perform in narrow clearance doorways. Face Weight-32 oz per sq. yd. Test - Test Description - Results: (1) Abrasion Resistance ASTM D3884-01 - Test specimen is subjected to the rubbing action of two abrading wheels under controlled conditions. Results measured in Weight loss (Grams) - 0.49 Grams (1.3 percent). (2) Accelerated Wear - Test specimen is subjected to the action of rollers under a specified load. Sample is rotated 10 degree after each pass. Results measured in thickness loss (percent) - 14.48 percent. (3) Accelerated Soiling ASTM D6540-00 - Test specimen is subjected to an accelerated soiling process. for a predetermined length of time. The sample is vacuumed, rated, submitted to an extraction device, then rated again. - (Based on visual inspection) 4.0 - Vacuum Rating 4.5 - Rating After Extraction. (4) Water Retention - Test specimen is submerged in water for 5 minutes, removed, drained for 15 seconds and weighed. Results measured in weight gain. (Gallons per square yard) - 0.455. (5) Flammability ASTM D2859 (CPSC FF 1-70) - Intended to measure the mattings response to an ignition source in a controlled environment. The uncharred area of the test specimen must be greater than 1 inch to pass. - 3.5 Inches Passes Federal Flammability Standard DOC FF 1-70. All testing of NoTrax floor matting has been performed by an independent testing laboratory. Available in charcoal color. Use for the pattern design is intended for areas where foot traffic is random and non-directional.