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Abstract
Proficiency testing program RT was announced for the purpose of comparing the performance of registered testing laboratories in the field in the NDT method RT. The aim is to ensure continuous improvement in the quality of testing laboratories’ services.
Keywords:Radiography; Test; Welding; Laboratories; Radiographs; Non-destructive testing; NDT; Metals; Alloys
Introduction
The RT X-ray Testing Staff Skill Testing Program was announced with the aim of comparing the performance of registered RT testing laboratories in the field of NDT.
Test Specimen
Welded steel sample sent by the Certification Laboratory, without specified brand - Figure 1.
Results of the Study
Table 1 specifies the criteria for evaluating the template.
Figure 2 shows the artificially created defects that we had to register.
Table 2 shows the result of our study - out of 20 we have 18.8 points.
In Table 3 a partial assessment of the defects registered by us is given - a rating of 26.4 out of 30.
Table 4-7 presents the results of the defect assessment.
Figure 3 shows some of the radiographs obtained in compliance with standards [1-3] which we sent to the examiners. The overall score we received - Table 7 is 91 out of a possible 100.
Conclusion
The Certificate was obtained for competence for RT testing of the Laboratory “Non- Destructive Testing” of Imstca Balevski A.
References
- BDS EN ISO 17637:2017 Non-destructive testing of fusion welded joints. Visual control. Non-destructive testing of welds - Visual testing of fusion- welded joints (ISO 17637:2016).
- BDS EN ISO 5579:2013 Non-destructive testing (control). Radiographic testing of metallic materials using film by X-ray and gamma radiation. Basic rules. Non-destructive testing - General principles for radiographic examination of metallic materials by X- and gamma-rays. Basic rules (ISO 5579:2013).
- BDS EN ISO 10675-1:2017 Non-destructive test of welded joints. Radiographic test acceptance rates. Non-destructive testing of welds - Acceptance levels for radiographic testing - Part 1: Steel, nickel, titanium and their alloys (ISO 10675-1:2021).
