NF EN ISO 11666

NF EN ISO 11666

February 2011
Standard Cancelled

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

ISO 11666:2010 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 ISO 11666:2010 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. ISO 11666:2010 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 above 100 mm, provided the examinations 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 ISO 11666:2010 to be applied. The nominal frequency of probes used in ISO 11666:2010 is between 2 MHz and 5 MHz unless attenuation or requirements for higher resolution call for other frequencies. The use of these acceptance levels in conjunction with frequencies outside this range needs to be considered carefully.

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Main informations

Collections

National standards and national normative documents

Publication date

February 2011

Number of pages

24 p.

Reference

NF EN ISO 11666

ICS Codes

25.160.40   Welded joints and welds
77.040.20   Non-destructive testing of metals

Classification index

A89-521

Print number

1 - 11/02/2011

International kinship

ISO 11666:2010

European kinship

EN ISO 11666:2010
Sumary
Non-destructive testing of welds - Ultrasonic testing - Acceptance levels

ISO 11666:2010 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 ISO 11666:2010 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.

ISO 11666:2010 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 above 100 mm, provided the examinations 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 ISO 11666:2010 to be applied. The nominal frequency of probes used in ISO 11666:2010 is between 2 MHz and 5 MHz unless attenuation or requirements for higher resolution call for other frequencies. The use of these acceptance levels in conjunction with frequencies outside this range needs to be considered carefully.

Replaced standards (3)
NF EN 1712
November 1997
Standard Cancelled
Non destructive examination of welds. Ultrasonic examination of welded joints. Acceptance levels.

Le présent document spécifie les niveaux d'acceptation 2 et 3 pour le contrôle par ultrasons de joints en aciers ferritiques soudés à pleine pénétration, qui correspondent aux niveaux de qualité B et C de la NF EN 25817.

NF EN 1712/A1
December 2002
Standard Cancelled
Non-destructive testing of welds - Ultrasonic testing of welded joints - Acceptance levels

Le présent document ajoute l'annexe ZA relative aux Directives UE 97/23/CE et 87/404/CEE et modifie les articles et paragraphes suivants : 1, 4.1 et 4.4.

NF EN 1712/A2
July 2004
Standard Cancelled
Non-destructive testing of welds - Ultrasonic testing of welded joints - Acceptance levels

Le présent document spécifie les niveaux d'acceptation 2 et 3 pour le contrôle par ultrasons de joints en aciers ferritiques soudés à pleine pénétration, qui correspondent aux niveaux de qualité B et C de la NF EN 25817.

Standard replaced by (1)
NF EN ISO 11666
February 2018
Standard Current
Non-destructive testing of welds - Ultrasonic testing - Acceptance levels

<p>ISO 11666:2018 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.</p> <p>These acceptance levels are applicable to testing carried out in accordance with ISO 17640.</p> <p>ISO 11666:2018 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.</p>

Table of contents
View the extract
  • Avant-propos
    iv
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Mesure de la longueur de l'indication
    1
  • 4 Réglage de la sensibilité et niveaux
    2
  • 5 Niveaux d'acceptation
    2
  • 5.1 Généralités
    2
  • 5.2 Indications longitudinales
    3
  • 5.3 Indications transversales
    3
  • 5.4 Groupement des indications
    3
  • 5.5 Longueur cumulée des indications acceptables
    4
  • Annexe A (normative) Niveaux
    6
  • Annexe B (normative) Technique du niveau d'amplitude fixe
    18
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