a. 2-Naphthylamine and salts of 2-Naphthylamine (CAS No 91-59-8) b. 4-Aminobiphenyl and salts of 4-Aminobiphenyl(CAS No 92-67-1) c. Benzidine and salts of Benzidine (CAS No 92-87-5) d. 4-nitrobiphenyl (CAS No 92-93-3).
Section 3-19. Prohibition on work with special chemicals
a. is used for the purpose of scientific research and trials, including analyses; b. is used in work operations intended to remove chemicals that are by-products or waste products; c. is used as an intermediate product in the production of the prohibited chemicals mentioned in the first paragraph, and for such use.