Following your inspection, the removal of any nitrogen or inert gas, the removal of any foreign materials from the transfer system and container, and that all valves have been closed, lp-gas _____ not _______ may be slowly introduced into the transfer system and the container

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Multiple Choice

Following your inspection, the removal of any nitrogen or inert gas, the removal of any foreign materials from the transfer system and container, and that all valves have been closed, lp-gas _____ not _______ may be slowly introduced into the transfer system and the container

Explanation:
During LP-gas transfer, the system is purged and prepared so that only the gas phase is introduced. After removing nitrogen or inert gas, clearing foreign materials, and closing all valves, propane should be introduced as a vapor, not as a liquid. Introducing vapor allows for a slow, controlled pressurization of the transfer system and container, keeping the fill rate manageable and preventing dangerous events. If liquid propane were introduced, it could flash to gas suddenly, causing a rapid pressure rise, potential damage to regulators and components, frost on lines, and the risk of overfilling. Using the vapor phase ensures a safe, predictable transfer and helps confirm the system is free of contaminants before any liquid propane is allowed into the vessel.

During LP-gas transfer, the system is purged and prepared so that only the gas phase is introduced. After removing nitrogen or inert gas, clearing foreign materials, and closing all valves, propane should be introduced as a vapor, not as a liquid. Introducing vapor allows for a slow, controlled pressurization of the transfer system and container, keeping the fill rate manageable and preventing dangerous events. If liquid propane were introduced, it could flash to gas suddenly, causing a rapid pressure rise, potential damage to regulators and components, frost on lines, and the risk of overfilling. Using the vapor phase ensures a safe, predictable transfer and helps confirm the system is free of contaminants before any liquid propane is allowed into the vessel.

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