ASTM E1304-97(2020)

5.2.1 To establish the effects of metallurgical variables such as composition or heat treatment, or of fabricating operations such as welding or forming, on the fracture toughness of new or existing materials.

5.2.2 For specifications of acceptance and manufacturing quality control, but only when there is a sound basis for specification of minimum K_Iv, 5.2.3 To provide high spatial resolution in measuring plane strain fracture toughness variations in parent pieces of material Note 2: The high spatial resolution is possible because of the small allowable specimen size criterion, B ≥ 1.25 (1.1 This test method covers the determination of plane-strain (chevron-notch) fracture toughnesses, 1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.