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:
  • Corporate Authors:

    American Society for Nondestructive Testing

    914 Chicago Avenue
    Evanston, IL  USA  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

Filing Info

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