1 This British Standard covers the non-destructive testing of fusion and resistance welds in aerospace mat-erials having a thickness of 2.5 mm and less. It applies to the inspection of materials and components both during the manufacturing stage and in service.
2 The standard accordingly covers visual, penetrant, magnetic particle, radiographic and ultrasonic inspection appropriate to the type of defect being sought, together with any limitations in the use of particular techniques.
BS M 42:1972 history
1972BS M 42:1972 Methods for non-destructive testing of fusion and resistance welds in thin gauge materials