Category: Inspection and Testing
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Dye Penetrant Inspection
This is one of the oldest and very simple NDT examination. It is also known as Liquid Penetrant Inspection (LPI) or Penetrant Testing (PT). In 19th century, it was done using kerosene and oil mixture.
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Advantages and Disadvantages of Dye Penetrant Inspection
Dye penetration inspection has it own advantages and disadvantages compared to other non-destructive testing methods.
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List of Standards for Dye Penetrant Inspection
Liquid penetrant inspection is used to detect any surface-connected discontinuities such as cracks from fatigue, quenching, and grinding, as well as fractures, porosity, incomplete fusion, and flaws in joints. Here is a list of standards generally followed in industry related to dye penetrant inspection.