(430 ILCS 35/2-9) (from Ch. 111 1/2, par. 252-9)
    Sec. 2-9. "Strong sensitizer" means any substance which will cause on normal living tissue through an allergic or photodynamic process a hypersensitivity which becomes evident on reapplication of the same substance and which is designated as such by the Director. Before designating any substance as a strong sensitizer, the Director shall find that the frequency of occurrence and severity of the reaction indicate a significant potential for causing hypersensitivity.
(Source: Laws 1959, p. 1529.)