... or volumeof a-naphthylamine, 3,30 -dichlorobenzidine (and its salts), ethyleneimine, b-propiolac-tone, 2-acetylaminofluorene, 4- dimethylaminoazo-benzene, or N-nitrosodimethyl-amine.The speci ... (1910.10 27 and 1926.112 7).Benzene (1910.10 28).Coke oven emissio ns (1910.10 29).1,2-Dibr omo-3-chl oropro pane (1910.10 44 ).Acryloni trile (1910.10 45 ).Ethylene oxide (1910.10 47 ).Formaldehyd ... No. 91 941 5. Bis-chloromethyl ether, CAS No. 542 8816. b-Naphthylamine, CAS No. 915987. Benzidine, CAS No. 928758. 4- Aminodiphenyl, CAS No. 926719. Ethyleneimine, CAS No. 1515 64 10. b-Propiolactone,...