§ 57.6309. Fuel oil requirements for ANFO.
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/us/cfr/t30/s§ 57.6309·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
(a)Liquid hydrocarbon fuels with flash points lower than that of No. 2 diesel oil (125 °F) shall not be used to prepare ammonium nitrate-fuel oil, except that diesel fuels with flash points no lower than 100 °F may be used at ambient air temperatures below 45 °F.
(b)Waste oil, including crankcase oil, shall not be used to prepare ammonium nitrate-fuel oil.