Division 22 23 Ebook Page 54 Pipe and Mechanical Insulation Brochure

27 Sound absorption coefficients ASTM C423; Mounting: Type AMaterial placed against a solid backing. Thickness Octave Band Center Frequencies, Hz Product Type in. (mm) 125 250 500 1000 2000 4000 NRC 701, unfaced 1 (25) 0.17 0.33 0.64 0.83 0.90 0.92 0.70 2 (51) 0.22 0.67 0.98 1.02 0.98 1.00 0.90 703, unfaced 1 (25) 0.11 0.28 0.68 0.90 0.93 0.96 0.70 2 (51) 0.17 0.86 1.14 1.07 1.02 0.98 1.00 705, unfaced and 706 smooth surface 1 (25) 0.02 0.27 0.63 0.85 0.93 0.95 0.65 2 (51) 0.16 0.71 1.02 1.01 0.99 0.99 0.95 703, FRK 1 (25) 0.18 0.75 0.58 0.72 0.62 0.35 0.65 2 (51) 0.63 0.56 0.95 0.79 0.60 0.35 0.75 705, FRK 1 (25) 0.27 0.66 0.33 0.66 0.51 0.41 0.55 2 (51) 0.60 0.50 0.63 0.82 0.45 0.34 0.60 703, ASJ Max 1 (25) 0.17 0.71 0.59 0.68 0.54 0.30 0.65 2 (51) 0.47 0.62 1.01 0.81 0.51 0.32 0.75 705, ASJ Max 1 (25) 0.20 0.64 0.33 0.56 0.54 0.33 0.50 2 (51) 0.58 0.49 0.73 0.76 0.55 0.35 0.65 Values given are for design approximations only; production and test variabilities will alter results. Specific designs should be evaluated in end-use configurations. Thermal conductivity k, Btu in/hr ft 2 F , W/mC Mean Temperature F 701 703 705, 706 Mean Temperature C 701 703 705, 706 50 0.22 0.21 0.22 10 0.032 0.030 0.032 75 0.24 0.23 0.23 25 0.035 0.033 0.034 100 0.26 0.24 0.25 50 0.040 0.036 0.037 150 0.30 0.27 0.27 75 0.045 0.040 0.041 200 0.35 0.30 0.30 100 0.052 0.045 0.045 250 0.40 0.34 0.33 125 0.059 0.050 0.049 300 0.46 0.38 0.37 150 0.067 0.055 0.053 700 Series Fiberglas Insulation Up to 48" Up to 96 Up t 48" Up to 96 Ceilings: 703 and 705 Series insulation Installation instructions 703 and 705 Series recommended impaling pin patterns Pins should be located 3-8" from the edges of the board. Walls: 703 and 705 Series insulation Up to 48" Up to 24"

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