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Magnaflux SpotCheck: An Introduction/Refresher
SpotCheck is a red visible non-destructive test method, which provides for the detection of surface discontinuities (flaws) in ferrous and non-ferrous test materials..
Liquid Penetrant Inspection and Magnetic Particle Inspection Specifications: An Overview
Posted By: Steve
Published: 06/26/2019
Times Read: 4896
ASTM E1417
“Standard Practice for Liquid Penetrant Testing” governs the liquid penetrant inspection process used in manufacturing and maintenance operations.
ASTM E1417 addresses personnel requirements, equipment requirements, penetrant application, and penetrant removal methods. ASTM E1417 also establishes the required tests and testing frequency for in-use penetrant materials.
SAE AMS 2644
“Inspection Material, Penetrant” covers the qualification, classification, and test procedures for all liquid penetrant test materials. QPL-SAE-AMS-2644 is the Qualified Products List of the penetrants, emulsifiers, cleaners, and developers that have been qualified and approved to SAE AMS 2644.
ASTM E1444
“Standard Practice for Magnetic Particle Testing” is the guiding document for magnetic particle inspection. ASTM E1444 establishes magnetic particle inspection guidelines and quality control requirements. ASTM E709 A supporting document that may be used with ASTM E1444. ASTM E709 is used as a reference guide for preparing inspection procedures. ASTM E709 describes magnetic particle inspection techniques that are recommended for various sizes and shapes of ferrous parts.
There is no qualified products list for magnetic particle materials. However, several AMS specifications provide the guidelines for magnetic particle materials. These AMS specifications cover the technical requirements and quality assurance provisions of various forms and methods of magnetic particle materials:
- dry method
- wet method
- fluorescent
- non-fluorescent
- oil vehicle
These AMS documents are used together with ASTM E1444. The following chart lists the specification, description and the corresponding Magnaflux product.
| Specification | Description | Magnaflux Product |
| AMS 2641 | MPI vehicle, petroleum base | Carrier II |
| AMS 3040 | Magnetic particles, non-fluorescent, dry method | #1 Gray, #2 Yellow, #8A Red |
| AMS 3042 | Magnetic particles, non-fluorescent, wet method, dry powder | 7C Black |
| AMS 3043 | Magnetic particles, non-fluorescent, wet method, oil suspension, ready to use, aerosol package | 7HF |
| AMS 3044 | Magnetic particles, fluorescent, wet method, dry powder | 14A |
| AMS 3045 | Magnetic particles, fluorescent, wet method, oil suspension, ready to use | 14AM |
| AMS 3046 | Magnetic particles, fluorescent, wet method, oil suspension, ready to use, aerosol package | 14AM |
Copies of ASTM specifications may be ordered from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 (Phone: (610) 832-9585) (Website: www.astm.org)
Copies of AMS/SAE specifications may be ordered from SAE World Headquarters, 400 Commonwealth Drive, Warrendale, PA 15096-0001 (Phone: (724) 776-4841) (Website: www.sae.org)
Source:
Stockhausen, Cheri. "Overview of Liquid Penetrant Inspection and Magnetic Particle Inspection Specifications." Magnaflux Blog, 5 June 2018, https://www.magnaflux.com/Magnaflux/Resources/Blog/Specifications-Overview
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