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Norm

ÖNORM EN ISO 17640

Issue date: 2019 04 01

Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment (ISO 17640:2018)

This document specifies techniques for the manual ultrasonic testing of fusion-welded joints in metallic materials of thickness =8 mm which exhibit low ultrasonic attenua...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 34 Pages
Language:
German | English | Download GER/ENG
Optionally co-design standards:
This document specifies techniques for the manual ultrasonic testing of fusion-welded joints in metallic materials of thickness =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 this document, 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. This document 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. This document 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. This document can be used for the assessment of discontinuities, for acceptance purposes, by either of the following techniques: a) evaluation based primarily on length and echo amplitude of the discontinuity; b) evaluation based on characterization and sizing of the discontinuity by probe movement techniques.
ÖNORM EN ISO 17640
2019 04 01
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ISO 17640:2018
Issue date : 2018 10 18
Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels, and assessment
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ISO 5577:2017
Issue date : 2017 01 27
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ISO 11666:2018
Issue date : 2018 02 01
Non-destructive testing of welds — Ultrasonic testing — Acceptance levels
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ISO 16810:2012
Issue date : 2012 03 23
Non-destructive testing — Ultrasonic testing — General principles
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ISO 16811:2012
Issue date : 2012 03 23
Non-destructive testing — Ultrasonic testing — Sensitivity and range setting
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ISO 16826:2012
Issue date : 2012 03 23
Non-destructive testing — Ultrasonic testing — Examination for discontinuities perpendicular to the surface
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ISO 17635:2016
Issue date : 2016 11 25
Non-destructive testing of welds — General rules for metallic materials
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ISO 23279:2017
Issue date : 2017 08 10
Non-destructive testing of welds — Ultrasonic testing — Characterization of discontinuities in welds