NEN EN 12680-1 : 2003

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 Order information
  4.2 Extent of examination
  4.3 Maximum permissible size of discontinuities
  4.4 Personnel qualification
  4.5 Wall section zones
  4.6 Severity levels
5 Examination
  5.1 Principles
  5.2 Material
  5.3 Equipment and coupling medium
  5.4 Preparation of casting surfaces for examination
  5.5 Examination procedure
  5.6 Examination report
Annex A (informative) Sound-beam diameters
Annex B (informative) Types of indications
Bibliography

Gives the requirements for the ultrasonic examination of steel castings (with ferritic structure) for general purposes and the methods for determining internal discontinuities by the pulse-echo technique.