How is the maximum amount of propane that can be dispensed into a container determined?

The maximum amount of propane that can be dispensed into a container is determined by multiplying the water capacity of the container by 42%. This figure is based on the physical properties of propane, which can be compressed, and the difference in density between propane and water. Propane has a lower density compared to water, so the capacity is adjusted accordingly to avoid overfilling and to ensure safe handling during dispensing.

Using 42% of the water capacity provides a guideline for determining how much liquid propane can be safely stored in a container without exceeding safety regulations or risking overpressure. This approach aligns with standard practices for handling pressurized gases like propane to maintain safety standards in storage and transportation.

Other methods, such as measuring the container's dimensions or applying a standard weight formula, do not specifically account for the unique characteristics of propane, including its gaseous state and the importance of ensuring adequate capacity for safe dispensing.