Standard Reference Radiographs for Gray Iron Castings Up to 412 in. (114 mm) in Thickness
Importancia y uso:
4.1 Personnel Qualification—Personnel utilizing reference radiographs to this standard shall be qualified to perform radiographic interpretation in accordance with a nationally or internationally recognized NDT personnel qualification practice or standard and certified by the employer or certifying agency, as applicable. The practice or standard used and its applicable revision shall be identified in the contractual agreement between the using parties. Personnel shall be authorized to perform radiographic interpretation by the employer. A certified Level III shall be available to assist with interpreting specifications and product requirements as applied to the reference radiographs (if the Level III is the radiographic interpreter, this may be the same person).
4.2 These reference radiographs, along with the referenced applicable steel casting standards (Reference Radiographs E186 and E446), are supplied as a means of establishing categories and severity levels of common internal discontinuity types in gray iron castings subjected to radiographic examination. They may be used in accordance with contractual specifications as agreed upon between purchaser and supplier.
4.3 The use of this standard is not intended to be restricted to the specific energy level or to the absolute thickness limits that are contained in this standard title. The title is intended to be descriptive and not restrictive. This document may be used, where there is no other applicable document, for other energy levels or thicknesses, or both, for which it is found to be applicable and for which agreement has been reached between purchaser and supplier.
Subcomité:
E07.02
Referida por:
A0834-24, E1030_E1030M-21, E1030_E1030M-21
Volúmen:
03.03
Número ICS:
77.040.20 (Non-destructive testing of metals), 77.140.80 (Iron and steel castings)
Palabras clave:
castings; discontinuities; gamma ray; gray iron; reference radiographs; X-ray ;