Loading Noses and Supports—The loading nose and
supports shall have cylindrical surfaces. The default radii of the
loading nose and supports shall be 5.0 6 0.1 mm (0.197 6
0.004 in.) unless otherwise specified in an ASTM material
specification or as agreed upon between the interested parties.
When the use of an ASTM material specification, or an agreed
upon modification, results in a change to the radii of the
loading nose and supports, the results shall be clearly identified
as being obtained from a modified version of this test method
and shall include the specification (when available) from which
the modification was specified, for example, Test Method D790
in accordance with Specification D4101.