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Combustible Sensor Limitations

Combustible sensor limitations

ContaminantLEL (Vol %)Flashpoint Temp (ºF)OSHA PELNIOSH RELTLV5% LEL in PPM
Acetone2.5%-4ºF (-20 ºC)1,000 PPM TWA250 PPM TWA500 PPM TWA; 750 PPM STE1250 PPM
Diesel (No.2) vapor0.6%125ºF (51.7ºC)None ListedNone Listed15 PPM300 PPM
Ethanol3.3%55ºF (12.8 ºC)1,000 PPM TWA1000 PPM TWA1000 PPM TWA1,650 PPM
Gasoline1.3%-50ºF (-45.6ºC)None ListedNone Listed300 PPM TWA; 500 PPM STEL650 PPM
n-Hexane 1.1%-7ºF (-21.7 ºC)500 PPM TWA50 PPM TWA50 PPM TWA550 PPM
Isopropyl alcohol2.0%53ºF (11.7ºC)400 PPM TWA400 PPM TWA; 500 PPM STEL200 PPM TWA; 400 PPM STEL1000 PPM
Kerosene/ Jet Fuels 0.7%100 – 162ºF (37.8 – 72.3ºC )None Listed100 mg/M3 TWA (approx. 14.4 PPM)200 mg/M3 TWA (approx. 29 PPM)350 PPM
MEK1.4%16ºF (-8.9ºC)200 PPM TWA200 PPM TWA; 300 PPM STEL200 PPM TWA; 300 PPM STEL700 PPM
Turpentine0.895ºF (35ºC)100 PPM TWA100 PPM TWA20 PPM TWA400 PPM
Xylenes (o, m & p isomers)0.9 – 1.1%81 – 90ºF (27.3 – 32.3 ºC)100 PPM TWA100 PPM TWA; 150 PPM STEL100 PPM TWA; 150 STEL450-550 PPM