ISO 4761:2022
Non-destructive testing of welds — Phased array ultrasonic testing (UT-PA) for thin-walled steel components — Acceptance levels

Standard No.

ISO 4761:2022

Release Date

2022

Published By

International Organization for Standardization (ISO)

Latest

ISO 4761:2022

Scope

This document specifies acceptance levels for the phased array ultrasonic testing technique (UT-PA) of full-penetration welds in low-alloy and/or fine-grained steels in the wall thickness range from 3,2 mm to 8 mm which correspond to the quality levels of ISO 5817. These acceptance levels are applicable to indications detected according to ISO 20601.

ISO 4761:2022 Referenced Document

• ISO 20601 Non-destructive testing of welds — Ultrasonic testing — Use of automated phased array technology for thin-walled steel components
• ISO 23243 Non-destructive testing - Ultrasonic testing with arrays - Vocabulary
• ISO 5577 Non-destructive testing - Ultrasonic testing - Vocabulary

ISO 4761:2022 history

• 2022 ISO 4761:2022 Non-destructive testing of welds — Phased array ultrasonic testing (UT-PA) for thin-walled steel components — Acceptance levels