I.S. EN 12681-1:2017

National Foreword
European foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Classification of radiographic techniques
6 General preparations and requirements
7 Test arrangements
8 Choice of tube voltage and radiation source
9 Film systems and metal screens
10 Reduction of scattered radiation
11 Source-to-object distance
12 Optical density D of radiograph
13 Film processing and viewing
14 Techniques for increasing the covered
   thickness range
15 Requirements on radiographs
16 Verification of image quality
17 Influence of crystalline structure
18 Acceptance criteria
19 Test report
Annex A (normative) - Minimum image quality
        values
Annex B (normative) - Severity levels for steel
        castings
Annex C (normative) - Severity levels for cast iron
        castings
Annex D (normative) - Severity levels for aluminium
        alloy and magnesium alloy castings
Annex E (normative) - Severity levels for copper alloy
        castings
Annex F (normative) - Severity levels for titanium and
        titanium alloy
Annex G (informative) - Significant technical changes
        between this European Standard and the
        previous edition
Bibliography

Gives specific procedures for industrial X-ray and gamma radiography for discontinuity detection purposes, using NDT (Non-destructive testing) film techniques.