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Standards and Recommendations: <br /> -OSHA PEL: TWA 100 ppm; STEL 125 ppm <br /> ACGIH TLV: TWA 100 ppm; STEL 125 ppm; BEI: 2 g(mandelic acid) /L in urine <br /> at end of shift; 2 ppm ethyl benzene in end-exhaled air prior to next <br /> shift. <br /> DFG MAK: 100 ppm (440 mg/m3) <br /> DOT Classification: 3; Label: Flammable Liquid <br /> SAFETY PROFILE: <br /> Moderately toxic by ingestion and intraperitoneal route. Mildly toxic by <br /> inhalation and skin contact. An experimental teratogen. Other <br /> experimental reproductive effects. Human systemic effects by inhalation: <br /> eye, sleep and pulmonary changes. An eye and skin irritant. Human <br /> mutation data reported. The liquid is an irritant to the skin and mucous <br /> membranes. A concentration of 0.1% of the vapor in air is an irritant to <br /> human eyes, and a concentration of 0.2% is extremely irritating at <br /> first, then causes dizziness, irritation of the nose and throat, and a <br /> sense of constriction in the chest. Exposure of guinea pigs to 1% <br /> concentration has been reported as causing ataxia, loss of <br /> consciousness, tremor of the extremities, and finally death through <br /> respiratory failure. The pathological findings were congestion of the <br /> brain and lungs with edema. <br /> A very dangerous fire and explosion hazard when exposed to heat or <br /> flame; can react vigorously with oxidizing materials. To fight fire, use <br /> foam, CO2, dry chemical. Emitted from modern building materials (CENEAR <br /> 69, 22, 91) . When heated to decomposition it emits acrid smoke and <br /> irritating fumes. . <br /> Updated: 03/07/94 <br /> Class: Reproductively Active; Standards or Recommendations <br /> XYLENE <br /> DPIM: XGS000 Hazard Rating: 3 <br /> CAS: 1330-20-7 <br /> DOT Number: UN 1307 <br /> M Formula: C8H10M Weight: 106. 18 <br /> Properties: <br /> A clear liquid. Bp: 138.5', flash p: 1000F (TOC) , d: 0.864 @ 200/40, vap <br /> press: 6.72 mm @ 210. Composition: as nonaromatics 0.07%, toluene 14%, <br /> ethyl benzene 19.27%, p-xylene 7.84%, m-xylene 65.01%, o-xylene 7. 63%, <br /> C9 and aromatics 0.04% (TXAPA9 33,543, 75) . <br /> Synonyms : <br /> DIMETHYLBENZENE DIMETHYLBENZENE " KSYLEN (POLISH) KSYLEN POLISH) " <br /> METHYL TOLUENE METHYL TOLUENE " NCI-C55232 NCI-C55232 " RCRA WASTE <br /> NUMBER U239 RCRA WASTE NUMBER U239 '" VIOLET 3 VIOLET 3 XILOLI <br /> (ITALIAN) XILOLI ITALIAN) " XYLENEN (DUTCH) XYLENEN DUTCH) XYLOL <br /> (DOT) XYLOL DOT) " XYLOLE (GERMAN) XYLOLE GERMAN) <br /> Toxicity Data with Reference: <br /> eyes-human 200 ppm JIHTAB 25,282, 43 <br /> skin-rabbit, adult 100% MOD AMIHAB 14, 387,56 <br /> 14 <br /> Site Safety i Health Plan Rev./1.0 <br /> October 20, 1997 <br />