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 level corresponding to ISO 5817 quality level D is not included in this International Standard 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 International Standard applies to the examination 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 abov
EN ISO 11666:2010 history
2018EN ISO 11666:2018 Non-destructive testing of welds - Ultrasonic testing - Acceptance levels
2010EN ISO 11666:2010 Non-destructive testing of welds - Ultrasonic testing - Acceptance levels (ISO 11666:2010)