ASTM C203Standard Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation
ASTM C203 is a test method that covers the determination of the breaking load and calculated flexural strength of a rectangular cross section of a preformed block-type thermal insulation tested as a simple beam. It is also applicable to cellular plastics.
Before conducting ASTM FC203, it is important to read the entire specification. Standards can be obtained from appropriate standard authorities.