F-6 Density and Thickness S.A.E. Specification Number F-6 A.S.T.M. Federal and Felt Association Type and Grade Number 12R2 Density Percent Specific Gravity 26.2 Actual (1) Wool Content (Min.) Percent 87 Carbon Tetrachloride Soluble (Max.) Percent 2.5 Water Soluble (Max.) Percent 2.5 Carbon Tetrachloride & Water Soluble (Max.) Percent 4.5 Ash (Max.) Percent 2.5 Tensile Strength (Min.) PSI 275 Splitting Resistance (Min.) Lbs. Per 2" Width 16 Trade Designation Extra Firm Pad Color Gray Standard Width Inches 72

THICKNESS WEIGHT Nominal (inch) Limits (inch) Nominal (lbs/sq. yd.) Limits (lbs/sq. yd.) 1/8 0.111 - 0.139 1.53 1.45 - 1.61 3/16 0.172 - 0.204 2.29 2.17 - 2.41 1/4 0.232 - 0.268 3.06 2.90 - 3.22 5/16 0.293 - 0.333 3.82 3.62 - 4.02 3/8 0.353 - 0.397 4.59 4.35 - 4.83 1/2 0.474 - 0.526 6.12 5.80 - 6.44 5/8 0.595 - 0.655 7.65 7.25 - 8.05 3/4 0.716 - 0.784 9.18 8.70 - 9.66 7/8 0.837 - 0.913 10.71 10.15 - 11.27 1 0.958 - 1.042 12.24 11.60 - 12.88