*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : LK3628000
CHEMICAL NAME           : Fibers, refractory ceramic
SUBSTANCE DEFINITION :
   A mixture of alumina and silica (1:1)
REFERENCE :
   EPASR* United States Environmental Protection Agency, Office of Pesticides
   and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW,
   Washington, DC 20460)  History unknown.
LAST UPDATED            : 199506
DATA ITEMS CITED        : 2
COMPOUND DESCRIPTOR     : Tumorigen
                          Mutagen
SYNONYMS/TRADE NAMES :
   * Refractory ceramic fibers
 
                       *** HEALTH HAZARD DATA ***
 
                          ** TUMORIGENIC DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 125 mg/kg
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Gastrointestinal - tumors
REFERENCE :
   EPASR* United States Environmental Protection Agency, Office of Pesticides
   and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW,
   Washington, DC 20460)  History unknown.  Volume(issue)/page/year:
   8EHQ-0485-0553
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Sex chromosome loss and nondisjunction
ROUTE OF EXPOSURE       : Oral
TEST SYSTEM             : Insect - Drosophila melanogaster
DOSE/DURATION           : 25 gm/L
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 324,23,1994
 
                            *** END OF RECORD ***