What should be done if residual vapors are present in an empty fuel truck?

The presence of residual vapors in an empty fuel truck is a significant safety concern. Proper ventilation is critical in this situation to mitigate the risks of explosion or inhalation of harmful fumes. Ventilating the truck helps to disperse these vapors, reducing the concentration to safer levels and allowing for a safer working environment.

Ensuring proper ventilation also aids in maintaining compliance with safety regulations that are designed to protect workers and the surrounding area. This step is not only a safety measure but also a standard operating procedure in fuel handling operations, demonstrating due diligence in hazard management.

While ignoring the vapors could lead to dangerous conditions, marking the truck as clean without ensuring it is free of hazardous vapors can put individuals at risk. Filling the truck with air might not effectively manage the vapors and could even potentially create further hazards. Therefore, ensuring proper ventilation is the most responsible action to take when residual vapors are present.