Product Name:Carpet Tiles,Square Carpet Construction : Tufted, Textured Loop Pile Face Fiber : 100% plencolor Certified Nylon 6 yarn (Twisted and Heat Set for Maximum Performance ) Stain Repel/Stain Resist/Soil Release : in protection Antimicrobial : In Protection Dye Method : Solution dyed Finished Face Weight 20 oz./sq.yd. (678.1 g./sq.m.) more Gauge 1/12" (47.20/10 cm.) Rows 10.7/in. (42.1/10 cm.) Tufts 128.40/sq.in. (1,987.12/100 sq.cm.) Finished Pile Height 0.10-0.22 in. (2.5-5.5 mm.) avg. Standard Backing PVC-Free Comfort Nominal Total Thickness 0.28 in. (7.00 mm.) Tile Size 20 x 20 in. (500 x 500 mm.) Nominal Total Weight 114.0 oz./sq.yd. (3,865.4 g./sq.m.) Flammability (Radiant Panel ASTM-E-648) 0.45 (Class I) Smoke Density (NFPA-258-T or ASTM-E-662) 450 Methenamine Pill Test (CPSC FF-1-70 or ASTM D 2859) Self-Extinguishing Lightfastness (AATCC 16E) 4.0 at 80 hrs. Crocking (AATCC 165) 4.0 wet or dry Static Electricity (AATCC-134) 20% R.H.,70 F. 3.5 KV, Permanent Conductive Fiber Dimensional Stability - Aachener Test (DIN Standard 54318) 0.2% Appearance Retention Rating (CRI TM101) Severe Use Specifications subject to normal manufacturing tolerances and may be changed without prior notice. Copies of actual test results available upon request.