Thermal insulation products for building equipment and industrial installations – Determination of thermal resistance by means of the guarded hot plate method – Part 1: Measurements at elevated temperatures from 100 °C to 850 °C; German version CEN/TS 15548-1:2011
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 02/01/2012

Thermal insulation products for building equipment and industrial installations – Determination of thermal resistance by means of the guarded hot plate method – Part 1: Measurements at elevated temperatures from 100 °C to 850 °C; German version CEN/TS 15548-1:2014
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 11/01/2014