NS EN 10228-4 : 1ED 1999

      Foreword
1 Scope
2 Normative references
3 Definitions
4 Items for agreement
5 Written procedure
6 Personnel qualification
7 Equipment and accessories
8 Routine calibration and checking
9 Stage of manufacture
10 Surface condition
11 Sensitivity
12 Scanning
13 Classification
14 Recording levels and acceptance criteria
15 Sizing
16 Reporting
Annex A (informative) Maximum testable depth for
                      circumferential shear wave scans
Annex B (informative) dB amplitude of indication related to
                      % DAC
Annex Z (informative) Clauses of this European Standard
                      addressing essential requirements or
                      other provisions of EU Directives

Gives procedures for manual, pulse-echo, ultrasonic test of forgings made from austenitic and austenitic-ferritic stainless steel. Immersion testing, a mechanized scanning technique, can be used, but must be agreed between buyer and supplier. Covers four kinds of forgings classified in accordance with their shape and production method. Types, 1, 2 and 3 are simple shapes and type 4 applies to complex shapes. Rolled bars, closed die forgings and turbine rotor and generator forgings are not included.