mittepurustav katse, mille korral kasutatakse hälvingute ilmutamiseks fluorestseeruvaid aineid ja ferromagnetilisi metallipulbreid, nt raudoksiidi (vt magnetpulberkatse; vrd magnetpulberkontrastvärvkatse), nondestructive test for flaws with magnetic particles coated with fluorescent material to increase the visibility of results (see: magnetic particle test; compare: magnetic particle contrast color test)