scope:

This part of the Standard describes methods for determining the nominal flexural strength of advanced monolithic technical ceramic materials at ambient temperature. The available loading geometries are three- and four-point flexure, using rectangular section test-pieces of two prescribed geometries: 20 mm support span (A) and 40 mm support span (B). The test may not give representative results if the mean linear intercept grain size exceeds 5% of the thickness of the test piece, with the exception of single crystals.