ISO 9712:2021

Overview

ISO 9712:2021 - "Non-destructive testing - Qualification and certification of NDT personnel" - defines requirements for third‑party certification of industrial NDT personnel. It sets out the framework for qualifying and certifying technicians and engineers working in common NDT methods (see list below), including training, industrial experience, examination, certification administration, renewal and recertification. The standard applies to industrial (non‑medical) NDT and can be extended to other NDT techniques where a comprehensive certification scheme and supporting standards exist.

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Key Topics

• Covered NDT methods: acoustic emission, eddy current, leak testing (excluding hydraulic pressure tests), magnetic testing, penetrant testing, radiographic, strain gauge, thermographic, ultrasonic, and visual testing (note: direct unaided visual tests and visual tests performed during another NDT method are excluded).
• Certification levels: defined Levels 1, 2 and 3 with distinct roles, responsibilities and competency expectations.
• Eligibility requirements: specified training duration, documented industrial NDT experience, and vision requirements (near acuity and colour vision) for all levels.
• Examinations: modular structure including general, specific and practical elements; grading rules; provisions for re‑examination and supplementary exams. Practical specimen requirements and grading criteria are covered in normative annexes.
• Certification administration: roles and responsibilities for the certification body, authorized qualification bodies, examination centres, employers, examiners and referees; issuance, scope, suspension, withdrawal and re‑instatement of certificates.
• Maintenance: renewal, recertification and a structured credit system (including Level‑3 recertification) to ensure continued competence.
• Assessment options: allows use of psychometric processes at the certification body’s discretion.
• Scope extensions: applicability to other NDT methods if supported by international, regional or national standards or demonstrated effectiveness.

Applications

• Used by certification bodies to design compliant NDT personnel schemes.
• Used by training organisations and employers to develop curricula and experience pathways that meet certification requirements.
• Reference for NDT technicians and engineers seeking certification or renewal.
• Useful for inspection companies, asset owners and regulators requiring proof of personnel competence for safe, reliable NDT.

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Related Standards

• CEN/TR 14748 (guidance on methodology for qualification of non‑destructive tests).
• ISO/IEC Directives and relevant national or regional NDT standards referenced within ISO 9712 for method‑specific requirements.