F-5 Density and Thickness
S.A.E. Specification Number F-5
A.S.T.M. Federal and Felt Association Type and Grade Number 12R1
Density Percent Specific Gravity 26.2
Actual (1) Wool Content (Min.) Percent 95
Carbon Tetrachloride Soluble (Max.) Percent 2.5
Water Soluble (Max.) Percent 2.5
Carbon Tetrachloride & Water Soluble (Max.) Percent 3.0
Ash (Max.) Percent 2.0
Tensile Strength (Min.) PSI 400
Splitting Resistance (Min.) Lbs. Per 2" Width 18
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