LIQUID PENETRANTS

The use of the liquid penetrant inspection method to detect surface discontinuities in relatively non-porous materials is reviewed, and the advantages of this system are listed. The principle of the 3-step (application of the penetrant to the surface, removal of excess penetrant and application of the developer) technique is discussed, and the 2 classes (visible and fluorescent) of penetrants currently used are noted. Emulsifying and cleaning materials (for removing excess penetrant from the surface) and their characteristics are discussed, and 4 general types of developer materials (dry type, wet type, solvent-based type, and film type) are described.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00255327
• Corporate Authors:

  American Society for Nondestructive Testing

  914 Chicago Avenue
  Evanston, IL  United States  60202
• Authors:
  • Lomerson Jr, E O
• Publication Date: 1977-11

Media Info

• Features: Figures;
• Pagination: p. 24-30
• Serial:
  • Materials Evaluation
  • Volume: 35
  • Issue Number: 11
  • Publisher: American Society for Nondestructive Testing
  • ISSN: 0025-5327

Subject/Index Terms

• TRT Terms: Cracking; Inspection; Liquids; Penetrants; Surfaces
• Uncontrolled Terms: Discontinuity; Surface cracks
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00165853
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 8 1977 12:00AM