Strength is determined by MOR testing.

Q: What is MOR?
A: Modulus Of Rupture – Frequently abbreviated as MOR, (sometimes referred to as bending strength), is a measure of a specimen’s strength before rupture.

Q: How is MOR tested?
A: Our MOR test is a modified three point bending test performed according to ASTM standard E1652 Appendix 4. Check out our demonstration video. Modulus of Rupture