Dense Shaped Refractory Products——Determination of Bulk Density, Apparent Porosity and True Porosity

1 Scope This standard specifies the definition, prineiple, apparatus and materials, procedure, expression of resuits and test report of determination of bulk density, apparent porosity and true porosity of dense shaped refractory products.

Dense Shaped Refractory Products——Test Method of Linear Changes on Reheating

This Standard specifies methods for the determination of the linear changes on reheating of a dense shaped refractory product.

Dense Shaped Refractory Products——Determination of Permeability to Gases

1 Scope This standard specifies a method for the measurement of the permeability to gases of dense, shaped refractory products.