TILE & STONE RHYTHM Style Number CS46Z CS47Z Construction ceramic ceramic Tile Type wall tile bead Tile Size 12" × 24" 0.5" × 12" Edges rectified rectified 3 3 Technical Wear Rating Group Break Strength > 230 > 230 Water Absorption % < 10 < 10 DCOF N/A N/A Shade Variation V1 V1 Installation Area Walls 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.