Before shipping any used refrigerant cylinders, what standards must the cylinder meet?

• A. ISO standards
• B. Environmental Protection Agency standards
• C. Department of Transportation standards
• D. American Society of Heating and Refrigerating Engineers standards

Answer: (C)

The correct answer is focused on Department of Transportation standards because these regulations ensure that used refrigerant cylinders are constructed, marked, and maintained in a way that guarantees the safety of transport. The Department of Transportation (DOT) specifies guidelines for the handling and shipping of hazardous materials, including refrigerants, to minimize the risks associated with leaks, explosions, or environmental contamination during transit.

Refrigerant cylinders must be properly labeled, maintained in good condition, and meet specific criteria regarding design and testing to be safely transported. These standards are paramount to ensure the handling of potentially hazardous materials aligns with safety protocols during shipping.

While ISO standards relate more to international quality standards and the Environmental Protection Agency regulations focus on environmental impact and safety measures in handling refrigerants, the key regulations for physically shipping the cylinders fall under the jurisdiction of the DOT. As for the standards set by the American Society of Heating and Refrigerating Engineers, they primarily address design and performance criteria, rather than shipment safety and handling. Thus, the emphasis on DOT standards is essential for ensuring compliance and safety in the transportation of used refrigerant cylinders.