Emergency Services, LLC / Copyright 2007 / Volume 07-566 VARIOUS GAS EXAMPLES Xylene.9% LEL 7% UEL Flammable Range: 6.1% spread Methane 5% LEL 10% UEL Flammable Range: 10% spread –Any gas with a flammable range wider than 10% is listed as a Highly Flammable Gas.
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