ISO 17640:2010
Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment

Standard No.

ISO 17640:2010

Release Date

2010

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Replace By

ISO 17640:2017

Latest

ISO 17640:2018

Scope

This International Standard 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 this International Standard, 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 International Standard 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 International Standard 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 International Standard 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.

ISO 17640:2010 Referenced Document

• EN 12668 Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 3: Combined equipment*， 2024-04-19 Update
• EN 1330-4 Non-destructive testing - Terminology - Part 4: Terms used in ultrasonic testing
• EN 473 Non-destructive testing - Qualification and certification of NDT personnel - General principles
• EN 583-1 Non-destructive testing Ultrasonic examination Part 1: General principles Includes amendment A1:2003
• EN 583-2 Non-Destructive Testing - Ultrasonic Examination - Part 2: Sensitivity and Range Setting
• EN 583-4 Non-destructive testing Ultrasonic examination Part 4: Examination for discontinuities perpendicular to the surface Includes Amendment A1:2003
• ISO 11666:2010 Non-destructive testing of welds - Ultrasonic testing - Acceptance levels
• ISO 17635 Non-destructive testing of welds - General rules for metallic materials*， 2016-12-01 Update
• ISO 23279 Non-destructive testing of welds — Ultrasonic testing — Characterization of discontinuities in welds*， 2017-08-10 Update
• ISO 5817 Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) — Quality levels for imperfections*， 2023-02-24 Update
• ISO 9712 Non-destructive testing — Qualification and certification of NDT personnel*， 2021-12-21 Update

ISO 17640:2010 history

• 2018 ISO 17640:2018 Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment
• 2017 ISO 17640:2017 Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment
• 2010 ISO 17640:2010 Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment
• 2005 ISO 17640:2005 Non-destructive testing of welds - Ultrasonic testing of welded joints