*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : TB9605000 CHEMICAL NAME : Phosphoric acid, dibutyl ester CAS REGISTRY NUMBER : 107-66-4 BEILSTEIN REFERENCE NO. : 0607224 REFERENCE : 4-01-00-01530 (Beilstein Handbook Reference) LAST UPDATED : 199712 DATA ITEMS CITED : 25 MOLECULAR FORMULA : C8-H19-O4-P MOLECULAR WEIGHT : 210.24 WISWESSER LINE NOTATION : 4OPQO&O4 SYNONYMS/TRADE NAMES : * Dibutyl acid phosphate * Dibutyl hydrogen phosphate * Dibutyl phosphate * Di-n-butyl phosphate * Dibutyl phosphate * DP 4 (coupling agent) * HDBP *** REVIEWS *** ACGIH TLV-STEL 17 mg/m3 (2 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 ACGIH TLV-TWA 8.6 mg/m3 (1 ppm) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 1 ppm (5 mg/m3) DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,75,1971 OSHA PEL (Gen Indu):8H TWA 1 ppm (5 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 1 ppm (5 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 1 ppm (5 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 1 ppm (5 mg/m3) CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 1 ppm (5 mg/m3);STEL 2 ppm (10 mg/m3) JAN 1993 OEL-BELGIUM:TWA 1 ppm (8.8 mg/m3);STEL 2 ppm (17 mg/m3) JAN 1993 OEL-DENMARK:TWA 1 ppm (5 mg/m3) JAN 1993 OEL-FINLAND:TWA 1 ppm (8 mg/m3);STEL 3 ppm (24 mg/m3);Skin JAN 1993 OEL-FRANCE:TWA 1 ppm (5 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 1 ppm (5 mg/m3) JAN 1993 OEL-THE PHILIPPINES:TWA 1 ppm (5 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 1 ppm (8.5 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 1 ppm (5 mg/m3);STEL 2 ppm (10 mg/m3) JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO DIBUTYL PHOSPHATE-air:10H TWA 1 ppm;STEL 2 ppm REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 23865 No. of Facilities: 13 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 13 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 23865 No. of Facilities: 76 (estimated) No. of Industries: 2 No. of Occupations: 2 No. of Employees: 1321 (estimated) *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY EPA TSCA Section 8(d) unpublished health/safety studies EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998 NIOSH Analytical Method, 1994: Dibutyl phosphate, 5017 *** END OF RECORD ***