Non-destructive testing. Image quality of radiographs - Experimental evaluation of image quality values and image quality tables1 Scope This part of ISO 19232 gives instructions for the determination of image quality values and image quality tables. If the IQI requirements specified in ISO 19232 3 cannot be used because, for example, the absorption coefficients of the IQI material and the inspected material differ by more than 30 %, test exposures are necessary to determine acceptance of image quality values. The image quality values achieved by the test exposures are required

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This result helps you in assessing the safety of plastic and rubber sheets for roof waterproofing

Besides editorial adjustments in the text and updates of normative references the following changes have been made:

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Using BS EN 13316 guidelines ensures efficiency