ASTM C651-13

4.1 This test method may be used for material development, quality control, characterization, and design data generation purposes.

4.2 This test method determines the maximum loading on a graphite specimen with simple beam geometry in 4–point bending, and it provides a means for the calculation of flexural strength at ambient temperature and environmental conditions.

1.1 This test method covers determination of the flexural strength of manufactured carbon and graphite articles using a simple beam in four-point loading at room temperature.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.