Reusable refrigerant containers under high pressure must be hydrostatically tested how often?

The correct interval for hydrostatic testing of reusable refrigerant containers under high pressure is every five years. This requirement is established to ensure the safety and integrity of the containers that are used for refrigerants, which are often stored at high pressures.

Hydrostatic testing involves filling the container with water and applying pressure to determine if it can withstand the conditions it faces during use without leaking or failing. This process is critical because, over time, containers can develop weaknesses or corrosion that could lead to dangerous failures if not identified and addressed through testing.

By adhering to the five-year requirement, organizations can significantly mitigate the risk of accidents, ensuring that the refrigerants are handled safely throughout their lifecycle. This standard is essential for compliance with safety regulations and for maintaining a safe working environment when dealing with pressurized refrigerant containers.