This standard specifies the basic rules to detect the surface opening imperfection in metal weld by using penetration testing, it also specifies the acceptance level showed by penetration detect.
The acceptance level specified by this standard is used for manufacturing testing; it also can be used for testing in active service if it was considered appropriate. The acceptance level in this standard is based on the method specified in JB/T 9218 and the detection capability that is expected to reach according to the parameter recommended by this standard. The acceptance level related to the weld standard, application standard, technical conditions and laws & regulation more information to display. The acceptance level can be obtained in the product or the application standard.
The basic rules used when non-destructive testing is applied according to GB/T 5616 shall be applicable to this standard.
Foreword II
1 Scope
2 The normative references
3 Terminologies and definitions
4 Safety cautions
5 General provisions
5.1 Information needed prior to detection
5.2 Additional information prior to detection
5.3 Personnel qualification
5.4 Surface condition and preparation
6 Testing
7 Testing parameter
7.1 Summary
7.2 Sensitivity
7.3 Surface condition
7.4 Process and technology
8 Acceptance level
8.1 Summary
8.2 Assessment of indication
8.3 Group indication
8.4 Removal of defect
