NOTE 7—Punching or blanking of reduced section may produce significant cold work or shear burrs, or both, along the edges which should be removed by machining.
6.1.3.2 Within the reduced section of rectangular specimens, edges or corners should not be ground or abraded in a manner which could cause the actual cross-sectional area of the specimen to be significantly different from the calculated area.
6.1.3.3 For brittle materials, large radius fillets at the ends of the gage length should be used.
6.1.3.4 The cross-sectional area of the specimen should be smallest at the center of the reduced section to ensure fracture within the gage length. For this reason, a small taper is permitted in the reduced section of each of the specimens described in the following sections.
6.1.4 Specimen Surface Finish—When materials are tested with surface conditions other than as manufactured, the surface finish of the test specimens shall be as provided in the applicable product specifications.