DIN EN ISO 8990:1996-09 Thermal insulation - Determination of steady-state thermal transmission properties - Calibrated and guarded hot box (ISO 8990:1994); German version EN ISO 8990:1996
1998DIN EN 1934:1998 Termal performance of buildings - Determination of thermal resistance by hot box method using heat flow meter - Masonry; German version EN 1934:1998
1991DIN 52611-1:1991 Determination of thermal resistance of building elements; laboratory method