TYPE OF TEST : LCLo - Lowest published lethal concentration ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 684 mg/m3/1H TOXIC EFFECTS : Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - dyspnea REFERENCE : NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: UCRL-13701