This method is used to determine the tear resistance (tensile stress in the thickness direction) of glass fiber panels for thermal and acoustic insulation. The tear resistance of a glass fiber panel is defined as the unit load, in kilograms of force per square decimetre, necessary to tear, in the thickness direction, a panel sample, when the tensile stress is perpendicular to the plane of the two surfaces. larger. The method consists of subjecting the sample to a continuous tensile force, applied using a dynamometer. Equipment. Method.
UNI 6545-1969 history
1969UNI 6545-1969 Glass fibre materials for thermal and acoustical insulation. Resin bonded slabs. Determination of the tearing strength.