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Significance and Use
4.1 These reference radiographs may be used as a means for establishing the types and severity levels of discontinuities that are revealed by radiographic examination of steel fusion welds.
4.2 Each volume contains illustrations of representative graded and ungraded discontinuities applicable to seven thickness ranges, as shown in . lists the discontinuity types and severities illustrated for each thickness of base material. Each of the graded discontinuity types has five severity levels, 1 through 5 in order of increasing severity. The ungraded discontinuities are included for informational purposes.
4.3 These reference radiographs may be used in contractual specifications, for which agreement has been reached between purchaser and supplier, to establish acceptance limits of the types and severity levels of discontinuities revealed by radiographic examination.
4.4 The use of this document is not intended to be restricted to the specific energy levels given in or to the thickness limits given in . This document may be used, where there is no other applicable document, for other energy levels or thicknesses, or both, for which it is found to be applicable and for which agreement has been reached between purchaser and manufacturer.
1.1 This standard provides reference radiographs for steel fusion welds that contain typical discontinuities with varying severity levels in different thicknesses of material. The reference radiograph films are an adjunct to this standard and must be purchased separately from ASTM International if needed.
1.2 There are three volumes of reference radiographs based on seven nominal weld thicknesses as follows:
Vol Iref—Set of 16 plates (81/2 by 11 in.) covering base material up to and including 1/4 in. (6.4 mm) in thickness.
Vol II—Set of 29 plates (81/2 by 11 in.) covering base material over 1/4 to and including 3 in. (6.4 to 76 mm) in thickness.
Vol III—Set of 32 plates (81/2 by 11 in.) covering base material over 3 to including 8 in. (76 to 203 mm) in thickness.
1.3 From time to time, there may be minor changes to the process for manufacturing of the reference radiograph adjunct materials. These changes could include changes in the films or processing chemicals used, changes in the dies or printing for the cardboard mats, etc.; however, in all cases, these changes are reviewed by the Illustration Monitoring Subcommittee and all reference radiographs are reviewed against a fixed prototype image to ensure that there are no changes to the acceptance level represented by the reference radiographs. Therefore, the adjunct reference radiographs remain valid for use with this standard regardless of the date of production or the revision level of the text standard.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.5 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E94 Guide for Radiographic Examination
E1316 Terminology for Nondestructive Examinations
ICS Number Code 25.160.40 (Welding joints and welds)
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ASTM E390-15, Standard Reference Radiographs for Steel Fusion Welds, ASTM International, West Conshohocken, PA, 2015, www.astm.orgBack to Top