When shipping refrigerants in hazard class 2.2, what information needs to be on the shipping paper?

• A. Number of cylinders of each gas
• B. Hazard class and UN number
• C. Total weight
• D. Manufacturer name

Answer: (A)

The key idea is that shipping papers must identify the hazmat so responders know exactly what they’re dealing with. For refrigerants in hazard class 2.2, the critical pieces are the hazard class and the UN number. The UN number is the precise identifier for the specific gas, and the hazard class signals that it is a non-flammable gas and how it should be handled. This information lets anyone handling or responding to an incident immediately understand the material and the precautions required. Quantity information is needed too, but listing the number of cylinders isn’t the primary identifier; total quantity can be shown in appropriate units. Manufacturer name and total weight don’t identify the material itself, so they aren’t the central requirement for the shipping paper.