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Norm

ÖNORM EN ISO 11666

Issue date: 2018 06 15

Non-destructive testing of welds - Ultrasonic testing - Acceptance levels (ISO 11666:2018)

This document specifies two ultrasonic acceptance levels known as acceptance level 2 (AL 2) and acceptance level 3 (AL 3) for full penetration welded joints in ferritic s...
Valid
Publisher:
Austrian Standards International
Format:
Digital | 24 Pages
Language:
German | English | Download GER/ENG
Optionally co-design standards:
This document specifies two ultrasonic acceptance levels known as acceptance level 2 (AL 2) and acceptance level 3 (AL 3) for full penetration welded joints in ferritic steels, which correspond to ISO 5817:2014, quality levels B and C. An acceptance level corresponding to ISO 5817:2014, quality level D is not included in this document, as ultrasonic testing is generally not requested for this weld quality. These acceptance levels are applicable to testing carried out in accordance with ISO 17640. This document applies to the testing of full penetration ferritic steel welds, with thicknesses from 8 mm to 100 mm. It can also be used for other types of welds, materials and thicknesses, provided the tests have been performed with necessary consideration of the geometry and acoustic properties of the component, and an adequate sensitivity can be employed to enable the acceptance levels of this document to be applied. The nominal frequency of probes used in this document is between 2 MHz and 5 MHz, unless attenuation or requirements for higher resolution call for other frequencies. It is important to consider the use of these acceptance levels in conjunction with frequencies outside this range carefully.
ÖNORM EN ISO 11666
2018 06 15
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Norm
ISO 5817:2014
Issue date : 2014 02 06
Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) — Quality levels for imperfections
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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 17640:2018
Issue date : 2018 10 18
Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels, and assessment
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ISO 23279:2017
Issue date : 2017 08 10
Non-destructive testing of welds — Ultrasonic testing — Characterization of discontinuities in welds
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ISO 5577:2017
Issue date : 2017 01 27
Non-destructive testing — Ultrasonic testing — Vocabulary
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ISO 11666:2018
Issue date : 2018 02 01
Non-destructive testing of welds — Ultrasonic testing — Acceptance levels