When purging outdoors, how far must you be from a building opening?

When purging outdoors, it is essential to maintain a safe distance from building openings to prevent the risk of gas entering the building. The appropriate distance of 10 feet is necessary to ensure that any gas released during the purging process does not inadvertently enter through doors, windows, or ventilation systems. This distance helps to mitigate the potential for gas accumulation in occupied spaces, thereby reducing the risk of explosion or fire hazards.

The specified distance is based on safety standards that take into account factors such as wind direction, potential for gas migration, and the need for safe ventilation. By adhering to this 10-foot requirement, personnel can conduct purging operations more safely and effectively, protecting both themselves and occupants of nearby structures.