When can you transfer refrigerant that has been recovered from one owner's equipment to another owner's equipment?

The correct answer relates to the purity requirements of ARI 700. This standard outlines the specifications and criteria for handling refrigerants, particularly regarding their purity levels. To ensure safety and efficiency, it is crucial that any transferred refrigerant meets the established criteria for contamination, moisture content, and other characteristics.

Meeting ARI 700's purity requirements ensures that the refrigerant is suitable for use in the intended application and does not compromise the performance of the equipment it will be used in or pose safety risks. This is particularly important because using contaminated refrigerants can lead to equipment failure, increased energy consumption, and potentially harmful environmental consequences.

The other options do not adequately cover the regulatory and safety standards required for transferring refrigerants. For example, while emergency use may justify actions in specific scenarios, it does not speak to the ongoing requirements for safety and performance under normal operational conditions. Similarly, just having sufficient refrigerant levels or conducting a chemical analysis isn't always sufficient unless those results align with ARI 700's specifications. Therefore, meeting those purity standards ensures consistent reliability and safety in refrigerant management and usage.