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Description of BS EN 17290:2021 2021This document specifies the application of the time-of-flight diffraction (TOFD) technique in testing of metals for quantifying loss of thickness due to erosion and/or corrosion. This document applies to all types of corrosion and/or erosion damage, particularly those defined in EN ISO 16809 . This document applies to unalloyed or low-alloyed steels. It applies to components with a nominal thickness ? 6 mm. For smaller thicknesses, feasibility tests are performed to validate the test technique. For other materials, feasibility tests are essential, too. The TOFD technique can be used as a stand-alone technique or in combination with other non-destructive testing techniques, for in-service testing, in order to detect material loss caused by erosion and/or corrosion. This technique is based on analysis of TOFD images using reflected and/or diffracted ultrasonic signals. This document does not specify acceptance levels.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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