TILE & STONE TIMEWORN Style Number 201TS Construction porcelain Tile Type floor tile Tile Size 8" × 40" Technical Wear Rating Group 3 Break Strength > 250 Water Absorption % < 0.5 DCOF > 0.42 Shade Variation V3 Installation Area Floors, Walls A DCOF value of > 0.42 is the new standard for tiles specified for commercial application in standard A137.1-2012, Section 9.6. It replaces the SCOF value of > 0.60 referenced in ASTM C1028.