NF EN ISO 9934-1
Non-destructive testing - Magnetic particle testing - Part 1 : general principles
ISO 9934-1:2015 specifies general principles for the magnetic particle testing of ferromagnetic materials. Magnetic particle testing is primarily applicable to the detection of surface-breaking discontinuities, particularly cracks. It can also detect discontinuities just below the surface but its sensitivity diminishes rapidly with depth.This part of ISO 9934 specifies the surface preparation of the part to be tested, magnetization techniques, requirements and application of the detection media, and the recording and interpretation of results. Acceptance criteria are not defined. Additional requirements for the magnetic particle testing of particular items are defined in product standards (see the relevant ISO or EN standards).This part of ISO 9934 does not apply to the residual magnetization method.
ISO 9934-1:2015 specifies general principles for the magnetic particle testing of ferromagnetic materials. Magnetic particle testing is primarily applicable to the detection of surface-breaking discontinuities, particularly cracks. It can also detect discontinuities just below the surface but its sensitivity diminishes rapidly with depth.
This part of ISO 9934 specifies the surface preparation of the part to be tested, magnetization techniques, requirements and application of the detection media, and the recording and interpretation of results. Acceptance criteria are not defined. Additional requirements for the magnetic particle testing of particular items are defined in product standards (see the relevant ISO or EN standards).
This part of ISO 9934 does not apply to the residual magnetization method.
Le présent document définit les principes généraux pour l'examen magnétoscopique des matériaux ferromagnétiques. Il précise la préparation de surface de la pièce soumise à essai, les prescriptions et techniques d'aimantation, l'application du produit indicateur, l'enregistrement et l'interprétation des résultats.
Le présent document décrit différentes techniques de détermination des flux de fuites de part et d'autre de la paroi d'un objet soumis à une différence de pression. Les techniques décrites se basent sur l'évaluation de la variation de la masse de gaz à l'intérieur de l'objet sous examen. Pour chaque technique il est mentionné : les cas d'applications et les précautions à prendre.
ISO 9934-1:2016 specifies general principles for the magnetic particle testing of ferromagnetic materials. Magnetic particle testing is primarily applicable to the detection of surface-breaking discontinuities, particularly cracks. It can also detect discontinuities just below the surface but its sensitivity diminishes rapidly with depth. ISO 9934-1:2016 specifies the surface preparation of the part to be tested, magnetization techniques, requirements and application of the detection media, and the recording and interpretation of results. Acceptance criteria are not defined. Additional requirements for the magnetic particle testing of particular items are defined in product standards (see the relevant International Standards or European standards). ISO 9934-1:2016 does not apply to the residual magnetization method.
- Avant-propos
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1 Domaine d'application
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2 Références normatives
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3 Termes et définitions
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4 Qualification et certification du personnel
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5 Sécurité et exigences d'environnement
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6 Mode opératoire du contrôle
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7 Préparation de la surface
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8 Aimantation
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9 Produits indicateurs
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10 Conditions d'observation
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11 Contrôle de la performance globale
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12 Interprétation et enregistrement des indications
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13 Désaimantation
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14 Nettoyage
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15 Rapport de contrôle
- Annexe A (informative) Exemple de détermination des intensités de courant requises pour obtenir les intensités de champ magnétique tangentiel spécifiées pour les diverses techniques d'aimantation
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