Overview
ISO 11745:2022 - Brazing for aerospace applications - Qualification test for brazers and brazing operators - Brazing of metallic components - defines a standardized qualification test for personnel performing manual brazing and for brazing operators in aerospace production and repair. The second edition (2022) replaces ISO 11745:2010 and incorporates amendments such as alignment of visual inspection with ISO 24394 and the addition of filler material designation. Note: automatic brazing equipment operators are excluded, and general brazing covered by ISO 13585 is out of scope.
Key technical topics and requirements
- Scope and roles: Clear definitions for brazer, brazing operator, brazing equipment operator, brazing coordinator, examiner and examining body.
- Coordinator responsibilities: A designated brazing coordinator (acceptable to the design authority or examining body) oversees the qualification process and may delegate administration.
- Vision and fitness: Documented near-vision acuity and colour perception are required. Near vision must be tested (e.g., Jaeger No. 2, Visus 0.8, or EN 4179/NAS 410/ISO 18490 methods) at least every two years; colour perception at least every five years.
- Qualification testing: Combines a theory test and practical testing on standard test pieces. Practical testing includes process-specific tasks (fit-up, heating, filler application) relevant to aerospace metallic components.
- Examination methods: Visual and dimensional checks, peel tests, radiographic and metallographic examinations are specified as part of test evaluation.
- Acceptance, certification and validity: Criteria for passing, issuance of test certificates, period of validity, and procedures for requalification are defined. Informative annexes provide sample test records, certificates and theory-test guidelines.
Practical applications - who uses this standard
ISO 11745:2022 is used by:
- Aerospace manufacturers and maintenance/repair organizations for personnel qualification and compliance
- Brazing coordinators and quality managers responsible for process control and airworthiness
- Training and certification bodies that administer brazing theory and practical exams
- Design authorities and examining bodies evaluating brazing competence
- Non-destructive testing (NDT) personnel who support examination and acceptance of brazed joints
Benefits include consistent minimum skill verification, improved joint quality, compliance with aerospace safety and airworthiness requirements, and standardized documentation for audits.
Related standards and references
Relevant documents cited in ISO 11745:2022 include:
- ISO 18279 (brazing imperfections)
- ISO 18490 (vision testing for NDT)
- ISO 24394 (visual inspection alignment)
- EN 4179, EN 12799, EN 13134 (aerospace/NDT/brazing procedures)
- ANSI/AWS B2.2 and NAS 410
Keywords: ISO 11745:2022, brazing qualification, aerospace brazing, brazer certification, brazing operator, brazing coordinator, brazed joint inspection, NDT for brazing.