NBN EN 993-7:1999

This European Standard specifies a method for the determination of the modulus of rupture of dense and insulating shaped refractory products at elevated temperatures, under conditions of a constant rate of increase of stress. A method for determination of the same property at ambient temperature is given in EN 993-6. Note: The method relates primarily to fired refractories. If it is to be applied to chemically bonded or tar-bonded bricks, the bricks will usually require some form of preliminary heat treatment.