UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

ISO 11666

Non-destructive testing of welds - Ultrasonic testing - Acceptance levels

active, Most Current
Buy Now
Organization: ISO
Publication Date: 1 January 2018
Status: active
Page Count: 22
ICS Code (Welded joints and welds): 25.160.40
scope:

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.

Document History

ISO 11666
January 1, 2018
Non-destructive testing of welds - Ultrasonic testing - Acceptance levels
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...
December 15, 2010
Non-destructive testing of welds — Ultrasonic testing — Acceptance levels
This International Standard specifies ultrasonic acceptance levels 2 and 3 for full penetration welded joints in ferritic steels, which correspond to ISO 5817 quality levels B and C. An acceptance...

References

Advertisement