Yes, OSHA has rules for the use of flammable liquids in areas that are not designed as a Hazardous Location. OSHA covers Hazardous Locations in 1910.307, but those areas that do not rise to the level of being a Hazardous Location fall under 1910.334(d) which states:
Occasional use of flammable or ignitable materials. Where flammable materials are present only occasionally, electric equipment capable of igniting them shall not be used, unless measures are taken to prevent hazardous conditions from developing. Such materials include, but are not limited to: flammable gases, vapors, or liquids; combustible dust; and ignitable fibers or flyings.
Notice the standard uses the phrase “Where flammable materials are present only occasionally”. It is clear that this section is intended to cover those areas that are outside the scope of 1910.307 which states:
This section covers the requirements for electric equipment and wiring in locations that are classified depending on the properties of the flammable vapors, liquids or gases, or combustible dusts or fibers that may be present therein and the likelihood that a flammable or combustible concentration or quantity is present.
So .307 is for those areas where the quantity of flammables present poses a hazard the majority of the time and .334(d) is for those areas that flammables are present occasionally. .334(d) does permit the use of flammables in these areas when we have ventilation to prevent a flammable atmosphere from developing.
But the bottom line… the use of flammable liquids are regulated in both normal and hazardous locations.
CLICK HERE for 1910.334