BAIJIAN - Third party testing organization
This part of NB/T47013 specifies the liquid penetrant testing methods and quality grading for pressure equipment. This section is applicable to the detection of surface opening defects generated during the manufacturing、 installation、 and use of pressure equipment made of non porous metal materials
2 Normative References
The following documents are essential for the application of this document.
. For dated references、 only the dated version applies to this document. For undated references、 the new version (including all modifications) applies to this documentStandard logarithmic visual acuity chart
Non destructive testing terminology - Penetrant testing - General specifications for penetrant test blocks - Non destructive testing - Materials for penetrant testing - Part I: General requirements -3 Terms and definitions
The terms and definitions defined in GB/T12604.3 and NB/T47013.1、 as well as the following terms and definitions、 apply to this part. 3.1
Related indications
The trace display formed by the penetrant released from the sea in the defect is generally also called defect display.
3.2
Non related indications are indications formed by external factors unrelated to defects.
. 3.3
False indications caused by penetrant contamination and detection environment.
. 3.4
Assessment
Analyze the observed infiltration related displays to determine the reasons for such displays and their classification process.
. 4. General requirements 4. 1 Testing personnel4 Personnel engaged in penetration testing should meet the relevant regulations of NB/T 47013.1 4.1.2 The uncorrected or corrected near (decimal) and far (distance) visual acuity of penetrant testing personnel should not be less than 5.0. The testing method should comply with the provisions of GB 11533 and should be inspected once a year. Not allowed to be colored
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1. Telephone communication and confirmation of requirements
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