What is the maximum amount of refrigerant that can be stored in a 125-pound cylinder?

A 125-pound cylinder is designed to hold refrigerant, and its capacity typically includes its own weight when full. The maximum amount of refrigerant that can be stored in such a cylinder is generally considered to be 100 pounds. This is because the total weight of the cylinder when it is fully charged consists of both the refrigerant and the empty cylinder itself.

When determining this maximum, it is important to account for the cylinder's tare weight (the weight of the empty cylinder). While the full nominal capacity of the cylinder is labeled as 125 pounds, the practical limit for the refrigerant it can safely and effectively hold is generally 100 pounds. This ensures safe operation and compliance with storage regulations and standards.

The other options do not accurately reflect the typical storage practices for such a cylinder.