What is a method to prevent the accumulation of flammable liquids under containers?

Using grading, pads, or diversion curbs is an effective method to prevent the accumulation of flammable liquids under containers. This approach involves physical modifications to the landscape or installation of barriers that can guide spills or leaks away from containers, minimizing the risk of an explosion or fire due to flammable liquids pooling in one place.

Grading refers to altering the land slope to direct moisture or spills away from hazardous areas, while pads can be designed to contain potential leaks and prevent them from spreading. Diversion curbs act as barriers that can redirect liquid to designated areas where they can be safely managed. Together, these strategies significantly reduce the likelihood of fire hazards linked to the accumulation of flammable liquids.

The other options do not provide viable solutions to the problem. Allowing free flow without control can lead to spillages easily spreading and increasing risk. Ignoring requirements altogether is unsafe and against regulations designed to protect life and property. Simply using plastic sheets is not effective in managing spills and does not provide adequate protection against the hazards associated with flammable substances.