DIN EN ISO 17636-1:2021-05-draft: Non-destructive testing of welds - Radiographic testing. Pt. 1: X- and gamma-ray techniques with film (ISO/DIS 17636-1:2021); German and English version prEN ISO 17636-1:2021

This document applies to radiographic testing of fusion welded joints in metallic materials using industrial radiographic film techniques. This document applies to welded joints of plates and tubes. In addition to the conventional meaning, the term "pipe" should be understood in this document to include other cylindrical bodies such as pressure pipes, boiler drums and pressure vessels. This part of ISO 17636 is consistent with ISO 5579. This document does not set allowance limits for indications in radiographic images. This document has been prepared by Technical Committee ISO/TC 44 "Welding and allied processes" in co-operation with Technical Committee CEN/TC 121 "Welding and allied processes". The responsible German committee is NA 062-08-22 AA "Industrial radiographic testing" in the DIN Standards Committee for Materials Testing (NMP). Compared to DIN EN ISO 17636-1:2013-05, the following changes have been made: a) the normative references have been updated; b) the figures have been updated; c) in 6.9, the lower limits of thickness for Se 75 applications have been removed; d) in 7.3.2, the lower limit of thickness for Se 75 has been removed by agreement of the contracting parties; e) the references to figures 1 to 19 have been updated throughout the document; f) in 6. 7, the use of ASTM and other BPK wires was added by agreement of the contractors; g) clarification of the measurement of optical density in the weld root; h) clarification of BPK use for DWDI technique; i) in 6.7 a), the acceptance of visibility of a wire of less than 10 mm for pipes with an outer diameter < 50 mm was added; j) the document was editorially revised.