TYPE OF TEST : Mutation in microorganisms TEST SYSTEM : Microorganism - not otherwise specified DOSE/DURATION : 4000 ppm/24H (Continuous) REFERENCE : DKBSAS Doklady Biological Sciences (English Translation). Translation of DANKAS: Biological Section. (Plenum Pub. Corp., 233 Spring St., New York, NY 10013) V.112- 1957- Volume(issue)/page/year: 183,668,1968