This document describes a hot-wire (parallel) method for the determination of thermal conductivity of refractory products and materials. It is applicable to dense and insulating shaped products and to powdered or granular materials (see 6.2), for thermal conductivities of less than 25 W/m.K. The limits are imposed by the thermal diffusivity of the test material and therefore by the dimensions of the test pieces; higher thermal conductivities can be measured if larger pieces are used. Electrically conducting materials cannot be measured.NOTE 1 The thermal conductivity of products with a hydraulic or chemical bond can be affected by the appreciable amount of
DS/EN 993-15:2005 history
2005DS/EN 993-15:2005 Methods of test for dense shaped refractory products - Determination of thermal conductivity by the hot-wire (parallel) method