GB/T 15822.1-2024 Non-destructive testing - Magnetic particle testing - Part 1: General principles
1 Scope
This document specifies general principles for the magnetic particle testing of ferromagnetic materials. Magnetic particle testing is primarily applicable to the detection of surface-breaking discontinuities, particularly cracks. It can also detect discontinuities just below the surface but its sensitivity diminishes rapidly with depth.
This document specifies the surface preparation of the part to be tested, magnetization techniques, requirements and application of the detection media, and the recording and interpretation of results. Acceptance criteria are not defined. Additional requirements for the magnetic particle testing of particular items are defined in product standards.
This document does not apply to the residual magnetization method.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 3059 Non-destructive testing - Penetrant testing and magnetic particle testing - Viewing conditions
ISO 9934-2 Non-destructive testing - Magnetic particle testing - Part 2: Detection media
ISO 9934-3 Non-destructive testing - Magnetic particle testing - Part 3: Equipment
ISO 12707 Non-destructive testing - Magnetic particle testing - Vocabulary
EN 1330-1 Non-destructive testing - Terminology - Part 1: General terms
EN 1330-2 Non-destructive testing - Terminology - Part 2: Terms common to non-destructive testing methods
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 12707, EN 1330-1 and EN 1330-2 apply.
4 Qualification and certification of personnel
It is assumed that magnetic particle testing is performed by qualified and capable personnel. In order to provide this qualification, it is recommended to certify the personnel in accordance with ISO 9712 or equivalent.
