At normal temperature, a bulk nitrous oxide system has a storage capacity greater than what amount?

The correct answer reflects the standard storage capacity for a bulk nitrous oxide system at normal temperature, which is known to be 28,000 cubic feet. This value is significant as it represents the minimum capacity that ensures adequate supply for medical facilities that utilize nitrous oxide for procedures requiring anesthesia.

Understanding the importance of this capacity is crucial for maintaining a consistent and reliable supply of nitrous oxide, which is essential in emergency scenarios and routine medical applications. Medical facilities must adhere to these standards to ensure safety and efficiency in their operational protocols.

The other options outlined do not align with the industry standards for bulk nitrous oxide storage, as they either underestimate or overestimate the acceptable capacity needed to maintain a stable supply for medical use.