Standard Digital Reference Images for Aluminum Fusion Welds

Importancia y uso:

4.1 Personnel utilizing digital reference images 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. If assistance is needed with interpreting specifications and product requirements as applied to the reference radiographs, a certified Level III shall be consulted before accept/reject decisions are made (if the Level III is the radiographic interpreter, this may be the same person).

4.2 Use of these digital reference images requires agreement between the using parties as to the acceptable level of each discontinuity type. Illustrations are provided for welds in 0.125 in. (3.2 mm) thick material and 0.50 in. (12.7 mm) thick material. These illustrations are intended to be representative of base material thicknesses up to 0.75 in. (19 mm). Use of these digital reference images is not intended to be restricted to the specific energy level or the absolute thickness limits that are illustrated. These digital reference images may be used, where there is no other applicable document, for other energy levels or thicknesses, or both, for which agreement has been reached between the purchaser and the manufacturer. Standard digital reference images should be used in accordance with contractual specifications.

Subcomité:

E07.02

Volúmen:

03.04

Palabras clave:

aluminum; digital radiography; digital reference images; discontinuities; radiograph density; welds; X-ray;