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General Standards

Non-Destructive Weld Testing Standards cover multiple possible methods of testing welds or metallic materials. Non-destructive testing analysis techniques are used for QA, evaluations, research, in cases where the product is expensive or unique, failure analysis, and so on. With a focus on radiographic testing, these standards also cover magnetic, radioscopic, ultrasonic, and other methods. General rules, guides, terminology, are provided, as well as standard test methods, specific techniques, and acceptance levels, together covering both the broad strokes and the nuanced testing procedures.

ISO 17635:2016

Non-destructive testing of welds - General rules for metallic materials

ISO 17635:2016 gives guidelines for the choice of non-destructive testing (NDT) methods for welds and evaluation of the results for quality control purposes, based on quality requirements, material, weld thickness, welding process and extent of testing. ISO 17635:2016 also specifies general rules and standards to be applied to the different types of testing, for either the methodology or the acceptance levels for metallic materials. Acceptance levels cannot be a direct interpretation of the quality levels defined in ISO 5817 or ISO 10042. They are linked to the overall quality of the produced batch of welds. Requirements for acceptance levels for NDT comply with quality levels stated in ISO 5817 or ISO 10042 (moderate, intermediate, stringent) only on a general basis and not in detail for each indication. Annex A gives correlations between quality, NDT and acceptance level standards. Annex B gives an overview of the standards linked to quality levels, acceptance levels and NDT methods.

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ISO 17637:2016

Non-destructive testing of welds - Visual testing of fusion-welded joints

ISO 17637:2016 specifies the visual testing of fusion welds in metallic materials. It may also be applied to visual testing of the joint prior to welding.

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BS EN 1330-1:2014

Non destructive testing. Terminology. List of general terms (British Standard)

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BS EN 1330-2:1998

Non-destructive testing. Terminology. Terms common to the non-destructive testing methods (British Standard)

This part of the European standard defines the common terms for two or more non-destructive testing methods.

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