DPT theory
3
DEFECTS DETECTED Surface cracks which may be missed by naked eye
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DPT testing theory
Transcript of DPT theory
![Page 1: DPT theory](https://reader036.fdocuments.us/reader036/viewer/2022082815/563db902550346aa9a991e65/html5/thumbnails/1.jpg)
DEFECTS DETECTEDSurface cracks which may be missed by naked eye
![Page 2: DPT theory](https://reader036.fdocuments.us/reader036/viewer/2022082815/563db902550346aa9a991e65/html5/thumbnails/2.jpg)
Advantages
• Easy to use• No equipment required• Low cost both in material and labour
![Page 3: DPT theory](https://reader036.fdocuments.us/reader036/viewer/2022082815/563db902550346aa9a991e65/html5/thumbnails/3.jpg)
limitations
• Only surface defects can be detected• No permanent record