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US. NIOSH: Pocket Guide to Chemical Hazards <br /> Components Type Value <br /> 610 ppm <br /> TWA 350 mg/m3 <br /> 120 ppm <br /> Toluene (CAS 108-88-3) STEL 560 mg/m3 <br /> 150 ppm <br /> TWA 375 mg/m3 <br /> 100 ppm <br /> Xylene(o, m, p isomers) STEL 655 mg/m3 <br /> (CAS 1330-20-7) <br /> 150 ppm <br /> TWA 435 mg/m3 <br /> 100 ppm <br /> Biological limit values <br /> ACGIH Biological Exposure Indices <br /> Components Value Determinant Specimen Sampling Time <br /> Benzene(CAS 71-43-2) 25 pg/g S-Phenylmerca Creatinine <br /> pturic acid in urine <br /> Ethylbenzene (CAS 0.7 g/g Sum of Creatinine <br /> 100-41-4) mandelic acid in urine <br /> and <br /> phenylglyoxylic <br /> acid <br /> n-Hexane(CAS 110-54-3) 0.4 mg/I 2,5-Hexanedi- <br /> on, without <br /> hydrolysis <br /> 0.4 mg/I 2,5-Hexanedio Urine <br /> n,without <br /> hydrolysis <br /> Toluene(CAS 108-88-3) 0.3 mg/g o-Cresol,with Creatinine <br /> hydrolysis in urine <br /> 0.03 mg/I Toluene Urine <br /> 0.02 mg/I Toluene Blood <br /> Xylene(o, m, p isomers) 1.5 g/g Methylhippuric Creatinine <br /> (CAS 1330-20-7) acids in urine <br /> *-For sampling details, please see the source document. <br /> Exposure guidelines <br /> US-California OELs: Skin designation <br /> Benzene(CAS 71-43-2) Can be absorbed through the skin. <br /> Cumene(CAS 98-82-8) Can be absorbed through the skin. <br /> n-Hexane(CAS 110-54-3) Can be absorbed through the skin. <br /> Toluene(CAS 108-88-3) Can be absorbed through the skin. <br /> US-Minnesota Haz Subs: Skin designation applies <br /> Cumene(CAS 98-82-8) Skin designation applies. <br /> Toluene (CAS 108-88-3) Skin designation applies. <br /> US-Tennesse OELs: Skin designation <br /> Cumene(CAS 98-82-8) Can be absorbed through the skin. <br /> US ACGIH Threshold Limit Values: Skin designation <br /> Benzene(CAS 71-43-2) Can be absorbed through the skin. <br /> n-Hexane(CAS 110-54-3) Can be absorbed through the skin. <br /> US. NIOSH: Pocket Guide to Chemical Hazards <br /> Cumene(CAS 98-82-8) Can be absorbed through the skin. <br /> US.OSHA Table Z-1 Limits for Air Contaminants (29 CFR 1910.1000) <br /> Cumene(CAS 98-82-8) Can be absorbed through the skin. <br /> Appropriate engineering Provide adequate general and local exhaust ventilation. Use process enclosures, local exhaust <br /> controls ventilation, or other engineering controls to control airborne levels below recommended exposure <br /> limits. Use explosion-proof equipment. <br /> UNLEADED GASOLINE <br /> 913457 Version#:03 Revison date:23-May-2014 Print date:23-May-2014 6/ 15 <br /> Prepared by 3E Company <br />