Penetrant Inspection Training Course

Events > 2016 > August > Penetrant Inspection Training Course

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Created by NDT Team

NDT Consultants Ltd

Historically penetrant inspection was called the “oil and whiting method” as it used kerosene and a white powder for the inspection of railroad parts. However in the past 40 years the process has been improved tremendously to the point where it is a reliable and accurate inspection technique.

Liquid penetrant testing is a non-destructive means of locating surface discontinuities based on capillary action. In the liquid penetrant method the liquid is applied to the surface of the specimen and sufficient time is allowed for penetration of surface discontinuities. After, the part is cleaned and inspected.

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