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Flammable vs. Combustible Materials & Requirements

A Flammable liquid is any liquid that has a flashpoint below 100 degrees F (37.8 deg. C). Combustible liquids have a flashpoint at 100 degrees F (37.8 deg. C) or above, but below 200 degrees F (93.3 deg. C).

Before hot work begins, know which regulatory agency has jurisdiction over the jobsite. The Bureau of Ocean Energy Management, Regulation and Enforcement (BOEMRE) states that a 35-foot radius shall be free of flammable and combustible material before hotwork begins. If there are flammable or combustible liquids or vapors present, OSHA requires that a 50-foot radius around the hot work be free from these substances.

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