Questions and Answers
What qualifications are required for personnel performing examinations in accordance with this practice?
Agencies performing this practice are evaluated according to Specification E543.
True
What should the written procedure for magnetic particle testing include?
Name and address of facility, identification of parts, process controls, directions for magnetization, acceptance requirements, among others.
What is the minimum requirement for examining plated surfaces?
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Magnetic particle examination should be performed after all operations that might cause discontinuities.
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What is the acceptance requirement for evaluating indications after examination?
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The procedure for magnetic particle testing must be approved by someone qualified at Level ___ for magnetic particle testing.
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Study Notes
Personnel Qualification
- Personnel conducting examinations must be qualified and certified according to standards such as SNT-TC-1A, ANSI/ASNT CP-189, NAS 410, EN 4179, or ISO 9712.
- Certification must align with contract or purchase order specifications.
Agency Qualification
- Agencies performing practices can be evaluated following Specification E543.
Written Procedure
- Magnetic particle testing procedures must be documented and applicable to the specific parts being examined.
- Procedures need approval from a qualified Level 3 individual in magnetic particle testing.
- Must be submitted to the relevant engineering organization for review or approval.
Elements of the Written Procedure
- Must include facility identification, unique procedure number, and creation date.
- Identification of applicable part(s), including material and alloy information.
- For new components, outline the sequence of magnetic particle testing related to the manufacturing process.
- Include identification of test parts for system performance verification.
- Specify process controls and the areas or features of the part to be examined, with illustrations when necessary.
- Outline part preparation steps before testing and positioning guidance relative to magnetizing equipment.
- State the type of magnetizing current and equipment to be utilized.
- Describe methods for establishing magnetization, including directions and demagnetization procedures.
- Specify current levels, ampere turns, duration of application, and type of magnetic particle material with concentration limits.
- Define records required and how parts will be marked post-examination.
- Indicate acceptance requirements for evaluating indications and handling parts post-evaluation.
- Set demagnetization and cleaning requirements after examination.
- Define methods and frequency for documenting examination intensity for UV-A lamps.
Examination Sequence
- Conduct magnetic particle examination after operations that could introduce discontinuities, such as forging, heat treating, and welding.
- Examination should be performed prior to shot peening and before protective finishes.
Plating and Coatings
- Parts destined for plating or coatings require examination prior to application.
- Specific requirements for electroplated surfaces:
- Thickness of 0.0008 in. (0.02 mm) or less requires examination before or after electroplating.
- Thickness between 0.0008 in. and 0.0050 in. requires examination both before and after.
- Thickness of 0.0050 in. or greater needs examination before electroplating or grinding.
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Description
Test your understanding of the qualifications and procedures required for magnetic particle testing. This quiz covers certification standards, agency qualifications, and the essential elements of written procedures. Ensure you are familiar with the regulations and best practices outlined in industry specifications.
