Abstract
Summary: Make sure fuel oil handling facilities conform to N.F.P.A. standards. Avoid overshot filling lines. Provide weakened seams on above‐ground tank roofs. Limit storage tank or day tank temperatures to 125°F. Provide positive control to prevent over‐heating. Make sure thermostats are located in the hottest part of the oil. Operate storage so as not to uncover either the thermostat or the heating coils. Do not contaminate fuel oil with water or light hydrocarbon. Cool tanks and heaters before introducing water for cleaning. Do not perform hot work repairs above the liquid level on tanks in service. Do not rely on combustible‐gas‐indicator readings when the temperature of the vapor space being sampled is above atmospheric. Be wary of boil‐overs when lighting fuel oil tank fires.

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