ABSTRACT
NIOSH CRITERIA DOCUMENT SEP 78 NIOSH RECOMMENDS A STANDARD OF 3.5 MG/CU M TWA BASED ON LUNG, HEART, SKIN EFFECTS AND CARCINOGENICITY. THE PRESENT OSHA STANDARD IS 3.5 MG/CU M TWA.
EPA TSCA 8(E) STATUS REPORT SEHQ-0183-0468 JAN 83 PHILLIPS PETROLEUM PROVIDED FINAL REPORTS FROM TWO IN-VITRO MUTAGENICITY ASSAYS OF CARBON BLACK FEEDSTOCK. THE FEEDSTOCK DISPLAYED MUTAGENIC ACTIVITY WITH EXOGENOUS METABOLIC ACTIVATION IN AMES/SALMONELLA TYPHIMURIUM ASSAY AND A MOUSE LYMPHOMA FORWARD MUTATION ASSAY; WITHOUT ACTIVATION THE CARBON BLACK FEEDSTOCK WAS REPORTED TO BE NEGATIVE IN BOTH ASSAYS. A MIXTURE OF LIGHT, INTERMEDIATE, AND HEAVY CATALYTIC CRACKED PETROLEUM DISTILLATES (CAS NO.'S: 64741-59-9, 64741-60-2, AND 64741-61-3, RESPECTIVELY).
