1. Scope
This standard specifies the method used in magnetic particle testing of steel forgings and assessment on magnetic particle indication.
This standard is applicable to testing surface and near surface discontinuity of steel forgings.
This standard includes testing methods, acceptance criteria and quality classes.
2. Normative References
The following documents are indispensable for the application of this standard. For dated references, only the dated edition is applicable to this document. For undated references, the latest editions of the normative documents (including all the amendments) are applicable to this document.
GB/T 5097 Non-destructive testing-Penetrant testing and magnetic particle testing-Viewing conditions
GB/T 9445 Non-destructive Testing - Qualification and Certification of Personnel
GB/T 12604.5 Non-destructive Testing - Terminology - Terms Used in Magnetic Particle Testing
GB/T 15822.1-2005 Non-destructive testing-Magnetic particle testing-Part1:General principles
GB/T 15822.2 Non-destructive testing-Magnetic particle testing-Part 2:Detection media
GB/T 15822.3 Non-destructive testing-Magnetic particle testing-Part 3:Equipment
GB/T 23907 Non-destructive Testing-Shims for Magnetic Particle Testing
3. Terms and Definitions
For the purposes of this document, the terms and definitions defined in GB/T 12604.5 apply.
3.1
Magnetic particle indication
Accumulation of magnetic particle formed by leakage field due to defects
3.2
Magnetic particle testing
A kind of non-destructive testing method for surface and near surface discontinuity of ferromagnetic materials with the help of leakage field and magnetic particle
3.3
Foreword I
1. Scope
2. Normative References
3. Terms and Definitions
4. Personnel Qualification
5. Safety and Environment Requirements
6. Items for Agreement
7. Written Procedure
8. Testing Time and Surface Preparation
9. Magnetization
10. Testing Medium
11. Viewing Conditions
12. Inspection of Comprehensive Performance
13. Recording and Explanation of Indications
14. Classification of Magnetic Particle Indication
15. Record Limits and Acceptance Criteria
16. Removal of Defects
17. Demagnetization
18. Cleaning
19. Magnetic Particle Testing Report
