ISO was prepared by the European Committee for Standardization (CEN) Technical Committee TC , Welding, Subcommittee SC 5, Testing of welds. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the. ISO specifies two ultrasonic acceptance levels known as acceptance level 2 (AL 2) and acceptance level 3 (AL 3) for full penetration welded joints.

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Who is this standard for? It also introduces state of the art methodology and technology. Search all products by. These acceptance levels kso to testing carried out in accordance with ISO You may experience issues viewing this site in Internet Explorer 9, 10 or Please download Chrome or Firefox or view our browser tips.

BS EN ISO Non-destructive testing of welds. Ultrasonic testing. Acceptance levels

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BS EN ISO 11666:2018

An acceptance level corresponding to ISO quality level D is not included because ultrasonic testing is generally not requested for this weld quality. The nominal frequency of probes used in this standard is between 2 MHz and 5 Enn unless attenuation or requirements for higher resolution call for other frequencies.

Worldwide Standards We can source any standard from anywhere in the world. Manufacturers of welded joints Suppliers of welded joints Professionals responsible ios acceptance inspections Quality assessors Regulatory bodies The following industries are the most likely to use this standard: Your basket is empty. It specifies ultrasonic acceptance levels 2 and 3 for full penetration welded joints in ferritic steels, which correspond to 16166 quality levels B and C and applies to welds 8 mm to mm thick.

Techniques, testing levels, and assessment BS Take the smart route to manage medical device compliance.

Learn more about the oso we use and how to change your settings. We use cookies to make our website easier to use and to better understand your needs. Give careful consideration to using these acceptance levels in conjunction with frequencies outside this range.


This revision updates and corrects errors in the edition. This international standard specifies acceptance levels for full penetration ultrasonic non-destructive testing of welded joints in ferritic steels. Testing conditions, Welded joints, Wn joints, Welding, Ultrasonic testing, Acceptance approvalDimensions, Acceptance inspection, Sensitivity, Non-destructive testing, Thickness, Grades quality.

The standard can also be used for other types of welds, materials and thicknesses, as long as examinations take the geometry and acoustic properties of the component isi account, and an adequate sensitivity can be employed to enable the acceptance levels of this international standard to be applied. Click to learn more.

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