1.1 This radiograph covers requirements for radiographic examination for soundness of welds in fabricated steel by comparison to selected severity levels of Reference Radiographs E 390, Vol II. The base material varies from greater than 0.25 to 3 in. (6.4-76 mm) inclusive in thickness. Volume II is applicable. This radiograph is not suitable for shipyard use.

Note 1- When coordinated through the Department of Defense (DOD), this radiograph is intended as a direct replacement for Mil-Std 1264-B.

1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.

1.3 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 and health practices and determine the applicability of regulatory limitations prior to use.