EN 13537
Thermal properties of Sleeping Bags
Describes a testing standard where a thermal manikin is used as a measuring device, positioned inside a sleeping bag and placed in controlled cold conditions. Thermal loss is measured when stationary conditions are reached and, applying the result of a calibration procedure, a standard thermal insulation value of the sleeping bag is determined. A physiological model is then applied which uses the standard thermal insulation value to calculate ambient conditions corresponding to a comfort/utility range for the sleeping bag.
