CHEMICAL IDENTIFICATION

RTECS NUMBER :

DC3220000

CHEMICAL NAME :

Benzene, trimethyl- (mixed isomers)

CAS REGISTRY NUMBER :

25551-13-7

LAST UPDATED :

199712

DATA ITEMS CITED :

23

MOLECULAR FORMULA :

C9-H12

MOLECULAR WEIGHT :

120.21

WISWESSER LINE NOTATION :

1R X1 Y1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

Standard Draize test

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Rodent - rabbit

REFERENCE :

28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku," Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,24,1972

TYPE OF TEST :

Standard Draize test

ROUTE OF EXPOSURE :

Administration into the eye

SPECIES OBSERVED :

Rodent - rabbit

REFERENCE :

28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku," Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,24,1972 ** ACUTE TOXICITY DATA **

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

8970 mg/kg

REFERENCE :

28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku," Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,24,1972 *** REVIEWS *** ACGIH TLV-TWA 123 mg/m3 (25 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 25 ppm (120 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: 3,269,1971 OSHA PEL (Construc):8H TWA 25 ppm (120 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 25 ppm (120 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 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 25 ppm (125 mg/m3) JAN 1993 OEL-BELGIUM:TWA 25 ppm (123 mg/m3) JAN 1993 OEL-DENMARK:TWA 25 ppm (120 mg/m3) JAN 1993 OEL-FINLAND:TWA 25 ppm (120 mg/m3);STEL 40 ppm (200 mg/m3);Skin JAN 1993 OEL-FRANCE:TWA 25 ppm (125 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 25 ppm (125 mg/m3) JAN 1993 OEL-SWEDEN:TWA 25 ppm (120 mg/m3);STEL 35 ppm (170 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 25 ppm (125 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 25 ppm (125 mg/m3);STEL 35 ppm 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 TRIMETHYL BENZENE-air:10H TWA 25 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 : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X1303 No. of Facilities: 198 (estimated) No. of Industries: 2 No. of Occupations: 2 No. of Employees: 790 (estimated) No. of Female Employees: 365 (estimated)