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<br /> ASTM C578
<br /> Property
<br /> Type Type Type Type Type Type Type
<br /> XI I VIII II IX XIV XV
<br /> Nominal Density lb/ft3 0.75 1.00 1.25 1.50 2.00 2.50 3.00
<br /> (kg/m3) (12) (16) (20) (24) (32) (40) (48)
<br /> Density', min. lb/ft3 0.70 0.90 1.15 1.35 1.80 2.40 3.00
<br /> (kg/m3) (12) (15) (18) (22) (29) (38) (48)
<br /> 25°F °F.ft2.h/Btu 3.6 4.4 4.6 4.8 5.0 5.0 5.1
<br /> (°K.m2/W) (0.63) (0.77) (0.80) (0.84) (0.88) (0.89) (0.90)
<br /> Design Thermal
<br /> Resistance per 40°F °F.ft2.h/Btu 3.4 4.2 4.3 4.6 4.8 4.8 4.9
<br /> (°K.m2/W) (0.60) (0.73) (0.75) (0.81) (0.84) (0.84) (0.85)
<br /> 1.0 in. thickness
<br /> 75°F °F.ft2.h/Btu 3.2 3.9 3.9 4.2 4.4 4.4 4.5
<br /> (°K.m2/W) (0.57) (0.68) (0.69) (0.73) (0.77) (0.77) (0.78)
<br /> 25°F °F.ft2.h/Btu 3.5 4.2 4.4 4.6 4.8 4.8 4.9
<br /> (°K.m2/W) (0.61) (0.74) (0.77) (0.81) (0.84) (0.84) (0.86)
<br /> Thermal Resistance',
<br /> min per 40°F °F.ft2.h/Btu 3.3 4.0 4.2 4.4 4.6 4.6 4.7
<br /> (°K.m2/W) (0.58) (0.70) (0.74) (0.77) (0.81) (0.81) (0.83)
<br /> 1.0 in. thickness
<br /> 75°F °F.ft2.h/Btu 3.1 3.6 3.8 4.0 4.2 4.2 4.3
<br /> (°K.m2/W) (0.55) (0.63) (0.67) (0.70) (0.74) (0.74) (0.76)
<br /> Compressive Strength' psi 5.0 10.0 13.0 15.0 25.0 40.0 60.0
<br /> (as, 10% deformation, min. (kPa) (35) (69) (90) (104) (173) (276) (414)
<br /> Flexural Strength', psi 10.0 25.0 30.0 35.0 50.0 60.0 75.0
<br /> min. (kPa) (69) (173) (208) (242) (345) (414) (517)
<br /> Water Vapor Permeance' 5.0 5.0 3.5 3.5 2.5 2.5 2.5
<br /> of 1.0 in. thickness, max., perm
<br /> Water Absorption' by total immersion, 4.0 4.0 3.0 3.0 2.0 2.0 2.0
<br /> max., volume
<br /> Oxygen Index', min., volume % 24 24 24 24 24 24 24
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