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DIN EN ISO 17640
Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment (ISO 17640:2010); German version EN ISO 17640:2010- Historical Version
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BS EN ISO 17640:2010
Non-destructive testing of welds. Ultrasonic testing. Techniques, testing levels, and assessment- Historical Version
About This Item
Full Description
ISO 17640:2010 specifies techniques for the manual ultrasonic testing of fusion-welded joints in metallic materials of thickness greater than or equal to 8 mm which exhibit low ultrasonic attenuation (especially that due to scatter) at object temperatures from 0 °C to 60 °C. It is primarily intended for use on full penetration welded joints where both the welded and parent material are ferritic.
Where material-dependent ultrasonic values are specified in ISO 17640:2010, they are based on steels having an ultrasonic sound velocity of (5 920 ± 50) m/s for longitudinal waves and (3 255 ± 30) m/s for transverse waves.
ISO 17640:2010 specifies four testing levels, each corresponding to a different probability of detection of imperfections. Guidance on the selection of testing levels A, B, and C is given in Annex A.
ISO 17640:2010 specifies that the requirements of testing level D, which is intended for special applications, be in accordance with general requirements. Testing level D can only be used when defined by specification. This includes tests of metals other than ferritic steel, tests on partial penetration welds, tests with automated equipment, and tests at object temperatures outside the range 0 °C to 60 °C.
ISO 17640:2010 can be used for the assessment of indications, for acceptance purposes, by either of the following techniques: a) evaluation based primarily on length and echo amplitude of the signal indication; b) evaluation based on characterization and sizing of the indication by probe movement techniques.
The techniques used shall be specified.
Document History
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ISO 17640:2018
Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment- Most Recent
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ISO 17640:2017
Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment- Historical Version
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ISO 17640:2010
currently
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Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment- Historical Version
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ISO 17640:2005
Non-destructive testing of welds - Ultrasonic testing of welded joints- Historical Version