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AMERADA HESS COP PO RATION <br /> MATERIAL SAFETY DATA SHEET <br /> Gasoline, All Grades MSDS No. 9950 <br /> Component(CAS No.) Exposure Limits <br /> Source TWA STEL Note <br /> (ppm) (ppm) <br /> n-Hexane(110-54-3) OSHA 500 <br /> ACGIH 50 skin <br /> Methyl-tertiary butyl ether[MTBE] (1634-04-4) ACGIH 50 A3 <br /> Tertiar am I meth I ether TAME 994-05-8 None established <br /> Toluene (108-88-3) OSHA 200 Ceiling: 300 ppm; Peak:500 ppm(10 min.) <br /> ACGIH 50 - A4(skin) <br /> ------------------------------ ------------------------------------- <br /> 1,2- -Trim--- - ----- 095------ ACGIH 25 - <br /> Xylene, mixed isomers (1330-20-7) OSHA 100 -- <br /> ACGIH 100 150 A4 <br /> ENGINEERING CONTROLS <br /> Use adequate ventilation to keep vapor concentrations of this product below occupational exposure and <br /> flammability limits, particularly in confined spaces. <br /> EYE/FACE PROTECTION <br /> Safety glasses or goggles are recommended where there is a possibility of splashing or spraying. <br /> SKIN PROTECTION <br /> Gloves constructed of nitrile or neoprene are recommended. Chemical protective clothing such as that <br /> made of of E.I. DuPont Tychem®, products or equivalent is recommended based on degree of exposure. <br /> Note: The resistance of specific material may vary from product to product as well as with degree of <br /> exposure. Consult manufacturer specifications for further information. <br /> RESPIRATORY PROTECTION <br /> A NIOSH-approved air-purifying respirator with organic vapor cartridges or canister may be permissible <br /> under certain circumstances where airborne concentrations are or may be expected to exceed exposure <br /> limits or for odor or irritation. Protection provided by air-purifying respirators is limited. Refer to OSHA 29 <br /> CFR 1910.134, NIOSH Respirator Decision Logic, and the manufacturer for additional guidance on <br /> respiratory protection selection and limitations. <br /> Use a positive pressure, air-supplied respirator if there is a potential for uncontrolled release, exposure <br /> levels are not known, in oxygen-deficient atmospheres, or any other circumstance where an air-purifying <br /> respirator may not provide adequate protection. <br /> 9. PHYSICAL and CHEMICAL PROPERTIES rev. Jan-04 <br /> APPEARANCE <br /> A translucent, straw-colored or light yellow liquid <br /> ODOR <br /> A strong, characteristic aromatic hydrocarbon odor. Oxygenated gasoline with MTBE and/or TAME may <br /> have a sweet, ether-like odor and is detectable at a lower concentration than non-oxygenated gasoline. <br /> ODOR THRESHOLD <br /> Odor Detection Odor Recognition <br /> Non-oxygenated gasoline: 0.5-0.6 ppm 0.8- 1.1 ppm <br /> Gasoline with 15% MTBE: 0.2-0.3 ppm 0.4-0.7 ppm <br /> Gasoline with 15%TAME: 0.1 ppm 0.2 ppm <br /> BASIC PHYSICAL PROPERTIES <br /> BOILING RANGE: 85 to 437 OF (39 to 200 °C) <br /> VAPOR PRESSURE: 6.4- 15 RVP @ 100 OF (38°C) (275-475 mm Hg @ 68 OF (20 °C) <br /> VAPOR DENSITY(air= 1): AP 3 to 4 <br /> SPECIFIC GRAVITY(H20= 1): 0.70—0.78 <br /> EVAPORATION RATE: 10-11 (n-butyl acetate= 1) <br /> PERCENT VOLATILES: 100% <br /> Revision Date: 01/08/04 Page 5 of 8 <br />