1 Scope
This standard specifies the test method for penetrant testing.
This standard is applicable to test discontinuities, e.g. cracks, laps, folds, porosity and lack of fusion, which are open to the surface of the material to be tested. It is mainly applied to metallic materials, but can also be performed on other materials, provided that they are inert to the test media and they are not excessively porous, examples of which are castings, forgings, welds, ceramics, etc.
The term "discontinuity" is used here in the sense that no evaluation concerning acceptability or non-acceptability is included.
Methods for determining and monitoring the practical properties of penetrant testing products to be used are specified in JB/T 7523, GB/T 18851.2 and GB/T 18851.3.
The basic rules which shall be complied with in the application of non-destructive testing specified in GB/T 5616 apply to this standard.
2 Normative References
The following documents for the application of this standard are essential. Any dated reference, just dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 5097 Non-destructive Testing - Penetrant Testing and Magnetic Particle Testing - Viewing Conditions
GB/T 5616 Non-destructive Testing - Guidelines for Application
GB/T 9445 Non-destructive Testing - Qualification and Certification of Personnel
GB/T 12604.3 Non-destructive Testing - Terminology - Terms Used in Penetrant Testing
GB/T 18851.2 Non-destructive Testing - Penetrant Testing - Part 2: Testing of Penetrant Materials
GB/T 18851.3 Non-destructive Testing - Penetrant Testing - Part 3: Reference Test Blocks
GB/T 18851.4 Non-destructive Testing-Penetrant Testing - Part 4: Equipment
GB/T 18851.5 Non-destructive Testing - Penetrant Testing - Part 5: Penetrant Testing at Temperatures Higher than 50℃
GB/T 18851.6 Non-destructive Testing - Penetrant Testing - Part 6: Penetrant Testing at Temperatures Lower than 10℃
GB/T 20737 Non-destructive testing - General terms and definitions
JB/T 6064 Non-destructive Testing - General Specification for Penetration Test Block
JB/T 7523 Non-destructive Testing - Materials for Penetrant Testing
3 Terminologies and Definitions
For the purposes of this document, the terminologies and definitions specified in GB/T 12604.3 and GB/T 20737 apply.
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Safety Precautions
5 General Principles
5.1 Personnel
5.2 Method Summary
5.3 Operating Sequence
5.4 Equipment
5.5 Effectiveness
6 Products, Sensitivity and Designation
6.1 Product Family
6.2 Testing Products
6.3 Sensitivity
6.4 Designation
7 Compatibility of Testing Materials with the Part(s) to be Tested
7.1 General
7.2 Compatibility of Penetrant Testing Products
7.3 Compatibility of Penetrant Testing Materials with Tested Parts
8 Test Procedure
8.1 Written Test Procedure
8.2 Preparation and Precleaning
8.3 Application of Penetrant
8.4 Excess Penetrant Removal
8.5 Application of Developer
8.6 Viewing
8.7 Recording
8.8 Post Cleaning and Protection
8.9 Retesting
9 Test Report
Appendix A (Normative) Main Stages of the Penetrant Testing
Appendix B (Normative) Verification of Penetrant Testing
B.1 General
B.2 Reference Test Block
B.3 Verification of the Sensitivity Level
B.4 Verification of System Property
B.5 Precautions
Bibliography
Table 1 Testing Products
