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Better #109 brush step entrance mat. Brush Step features a lighter-weight double rib high/low design that performs the scraping function of the mat. The ribbed surface brushes, channels, and conceals dirt and debris and is the perfect choice for light to medium traffic areas. 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) – 1.15. (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) – 38.66 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.