The filling connection and vent from liquid gauges on DOT or ASME containers must be located at least how far from a source of ignition?

The requirement that the filling connection and vent from liquid gauges on DOT or ASME containers be located at least 10 feet in any direction from a source of ignition is grounded in safety regulations designed to minimize the risk of fire or explosion. Propane is a highly flammable gas, and if it were to leak, its vapors could create a dangerous environment if ignited.

By maintaining a distance of 10 feet from potential ignition sources, such as electrical equipment, open flames, or any other flammable materials, the likelihood of an ignition event is significantly reduced. This distance is a precautionary measure to provide a buffer zone that helps ensure the safety of personnel and the surrounding environment when handling propane.

This regulation is in line with industry standards and best practices that prioritize safety in the handling and storage of flammable substances. Thus, the specification of a 10-foot distance is a critical aspect of safety protocols in propane operations.