ASTM C773 – Standard Test Method for Compressive (Crushing) Strength of Fired Whiteware Materials
Significance and Use
3.1 Resistance to compression is the measure of the greatest strength of a ceramic material. Ideally, ceramics should be stressed this way in use. This test is a measure of the potential load-bearing usefulness of a ceramic.
1.1 This test method covers two test procedures (A and B) for the determination of the compressive strength of fired whiteware materials.
1.2 Procedure A is generally applicable to whiteware products of low- to moderately high-strength levels (up to 150 000 psi or 1030 MPa).
1.3 Procedure B is specifically devised for testing of high-strength ceramics (over 100 000 psi or 690 MPa).