DIN 54111-1:1988-05

1 Scope and field of application
2 Concepts
      2.1 Nominal wall thickness
      2.2 Penetrated thickness of test object
      2.3 Distance b
      2.4 Distance f
      2.5 Film-to-focus distance
3 Classification of radiographic techniques
      3.1 General
      3.2 Additional information regarding test Class B
4 Test arrangements
      4.1 General
      4.2 Single-wall penetration of flat welds
      4.3 Single-wall penetration of curved welds
      4.4 Double-wall penetration of both flat and
             curved welds
      4.5 Number of radiographs
5 Radiation source
      5.1 General
      5.2 X-ray equipment with a tube voltage up to 500
             keV
             5.2.1 Maximum permissible tube voltage
             5.2.2 Contrast reduction
      5.3 Yb 169, Ir 192, Co 60 and X-ray equipment with
             a tube voltage of 1 MeV and above
             5.3.1 Thickness latitude
             5.3.2 Use of Ir 192 instead of X-ray
                      equipment with a tube voltage up to
                      500 keV
      5.4 Influence of material structure
6 Films and intensifying screens
      6.1 Film classes
      6.2 Choice of films and screens
      6.3 Film-screen contact
      6.4 Film and screen sizes and cassettes
      6.5 Density of radiograph
7 Source-to-object distance
      7.1 General
      7.2 Special rules
8 Preparation of workpiece surface
9 Shielding from scattered radiation
10 Radiographs
      10.1 Identification of radiographs
      10.2 Marking of test area
      10.3 Overlap of films
      10.4 Zones on either side of weld edges
11 Image quality indication
12 Film processing
13 Test report
14 Evaluation of radiographs
15 Areas not accessible for examination
16 Agreements
Appendix A