ASTM C 653 Determination of the Thermal Resistance of Low-Density Blanket – Standard
ASTM C653 Standard Guide for Determination of the Thermal Resistance of Low-Density Blanket-Type Mineral Fiber Insulation
ASTM C 653 Determination of the Thermal Resistance of Low-Density Blanket –Scope
This guide describes the calculation and interpolation of a thermal resistance value for low-density blanket-type insulation material at a particular density and thickness having been selected as representative of the product. It requires measured values of this average density and thickness, as well as apparent thermal conductivity values determined by either Test Method C 177, C 518, or C 1114.
This guide applies to a density range for mineral-fiber material of roughly 6.4 to 48 kg/m3 (0.4 to 3.0 lb/ft3). It is primarily intended to apply to low-density, mineral-fiber mass insulation batts and blankets, exclusive of any membrane facings. Apparent thermal conductivity data for these products are commonly reported at a mean temperature of 23.9°C (75°F) and a hot-to-cold plate temperature difference of 27.8°C (50°F) or 22.2°C (40°F).
ASTM C 653 Thermal Resistance of Low-Density Blanket - Reference Standard
ASTM C167 Test Methods for Thickness and Density of Blanket
ASTM C168 Terminology Relating to Thermal Insulation
ASTM C518 Steady-State Thermal Transmission Properties
ASTM C1045 Practice for Calculating Thermal Transmission Properties
ASTM C1114 Steady-State Thermal Transmission Properties by Means of the Thin-Heater
ASTM C177 Steady-State Heat Flux Measurements and Thermal Transmission Properties