TILE & STONE COSMOPOLITAN Style Number CS84Z CS85Z Construction ceramic ceramic Tile Type wall tile wall bullnose Tile Size 4" × 12" 4" × 12" Wear Rating Group N/A N/A Break Strength > 110 > 110 16 16 N/A N/A V3 V3 gloss Technical Water Absorption % DCOF Shade Variation 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.