ASTM A 939 - 07 Standard Practice for Ultrasonic Examination from Bored Surfaces of Cylindrical Forgings

American Society for Testing and Materials (ASTM). Current edition approved May 1, 2007. Published May 2007. Originally approved in 1995. Last previous edition approved in 2006 as A 939 – 96 (2006). 2 p. This practice covers a basic procedure of ultrasonically inspecting cylindrical forgings with bores from the bore surface.