ASTM E592 : 2020 Title: Standard Guide to Obtainable ASTM Equivalent Penetrameter Sensitivity for Film Radiography of Steel Plates 14 to 2 in. (6 to 51 mm) Thick with X-Rays and 1 to 6 in. (25 to 152 mm) Thick with Cobalt-60 Pages: 6 Year: 2020 Publisher: American Society for Testing and Materials Availability: Within 1-2 working days