SSH EN 462-4:1994

Provat pa shkatërrim - Cilësia e figurës në radiografi - Pjesa 4: Vlerësimi eksperimental i vlerës së cilësisë së figurës dhe tabelave të cilësisë së figurës

Non-destructive testing - Image quality of radiographs - Part 4: Experimental evaluation of image quality values and image quality tables

Scope

This standard gives instructions for the determination of image quality values and image quality tables. If the IQI requirements from part 3 of this standard cannot be used, because, for example, the absorption coefficients of the IQI material and the inspected material differ by more than 30 %, test exposures arenecessary to determine acceptance of image quality values. The image quality values achieved by the test exposures are required for all exposures made under the same radiographic conditions.