One Complete NDT Source
Liquid Penetrant Inspection

Materials

Penetrant Classification System


 

Penetrants Type I Fluorescent
Type II Visible (Red)
Fluorescent Sensitivity Level 1/2 Ultra Low
Level 1 Low
Level 2 Medium
Level 3 High
Level 4 Ultra High
Removers Class 1 Halogenated (nonflammable)
Class 2 Nonhalogenated (flammable)
Removal Method Method A Water Washable
Method B Lipophilic Emulsifier (oil based)
Method C Solvent Wipe
Method D Hydrophilic Emulsifier (water based)
Developers Form A Dry Powder
Form B Water Soluble
Form C Water Suspendable
Form D Nonaqueous Type 1 Fluorescent, Solvent Based
Form E Nonaqueous Type 2 Visible, Solvent Based