| http://www.w3.org/ns/prov#value | - tly and safely of leakage or spills.(c) Category 1 or 2 flammable liquids, or Category 3 flammable liquids with a flashpoint below 100 ??F (37.8 ??C), may be used only where there are no open flames or other sources of ignition within the possible path of vapor travel.(d) Flammable liquids shall be drawn from or transferred into vessels, containers, or portable tanks within a building only through
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