WORK PLANS_FILE 1 - Laserfiche WebLink

Home Browse Search

t Page 2 of 3 TLV -- STEL -- Units PEL — STEL — C/P -- Units Gasoline 90-100 Mixture 300-500--ppm NA—NA—NA -- -- Butane 0 106-97-8 800—NA—ppm NA—NA—NA .- --- Pentane © 109-66-0 600-750--PPm 1000--NA—NA—PPm In-Hexane ® 110-54-3 50--NA--PPm 500--NA--NA—Ppm Hexan(other isomers) NA 500-1 ,000—PPm NA--NA--NA- Benzene 1 .2 - 4.9 7-4-2 0.5--2.5--ppm 1-5—NA—ppm N-heptane 0 14-82-5 400-500--ppm 500—NA—NA—ppm Ethylbenzene 0 700-41 -4 100-125--pPm 100—NA—NA--PPm Xylene (o,m,p, - Isomers) <11 1330-20-7 100-150--ppm 100—NA—NA—ppm Cyclohexane 0 110-82-7 300—NA—PPm 300—NA—NA--ppm Trimethylbenzene ® 25551 -13-7 25—NA—PPm NA-NA-NA- - Methyl-t-butyl ether (MTBE) 0-15 1634-04-4 40--NA--ppm NA-NA-NA- - Toluene <12 108-88-3 50-NA-ppm 200-300/500-NA-ppm Ethyl-t-butyl ether (ETRE) 0-7 837-92-3 N/A-NA-ppm NA-NA-NA- --- tamyl-methyl-ether 0-5 994-OS-8 N/A-NA-ppm NA-NA-NA- --- Ethanol 0-11 64-17-5 1 ,000-NA-ppm 1 ,000-NA-NA-ppm C=Ceiling concentration not to be exceeded at any tume. P= Peak concentration for a single 10 minute exposure per day. 3. Hazards Identification Health Hazard Data: 1 . The major effect of exposure to this product is central nervous system depression and polyneuropathy. 2. Studies have shown that repeated exposure of laboratory animals to high concentrations of whole gasoline vapors at 67 ,262 and 2056 ppm has caused kidney damage and cancer of the kidney in rats and liver cancer in mice. 3. LARC has listed gasoline as possibly carcinogenic (2B) to humans with limited evidence in humans in the absence of sufficient evidence in experimental animals. NIOSH lists gasoline as a carcinogen with no further classification . 4. Wheptane and cyclohexane cause narcosis and irritation of eyes and mucous membranes. Cyclohexane has been reported to cause liver and kidney changes in rabbits. N-heptane has been reported to cause polyneuritis following prolonged exposure. 5. ACGIH lists benzene a human carcinogen with and assigned TLV of 0. 5 ppm 8 hour TWA and a STEL of 2.5 ppm; IARC, NTP $ OSHA show sufficient evidence for classifying Benzene as a human carcinogen, see 29 CGR 1910. 1028 for current PEL of 1 ppm and specific actions to take. Studies have shown that benzene can induce leukemia at concentrations as low as 1 ppm . Significant elevations of chromosomal aberrations have been corroborated among workers exposed to levels at mean concentrations less than 10 ppm. Based on risk assessment studies by Rinsky, an individual inhaling 1 ppm of benzene for 40 years, the odds of benzene-induced leukemic death were 1 .7 times higher than those of unexposed workers. 6. MTBE is a mild irritant to the eye with an LC50 of 85 mg/m3 on 4 hr. exposure and an LD50 �4 ml/Kg (RATS). An increase in anesthesia with increasing http://www.brownoil.com/msdsgasoline.htm 11/ 10/2004