ASTM C 423 - SA = 0.30 to 0.98; ASTM E 1264 - NRC = 0.6 to 0.75
Maintenance
For routine maintenance lightly dust with a soft brush or vacuum. For light marks or stains, avoid excessive amounts of water. Gently clean excess with sponge or cloth. Sponge with a small amount of carpet shampoo working circularly from well outside the stain towards the center. Sponge afterward with warm damp cloth and mop excess water with a clean dry cloth or sponge. Allow to dry. Brush gently with a soft brush. Repeat as necessary
