NFPA-99 Practice Exam

A system with a storage capacity of more than 20,000 cubic feet is referred to as bulk oxygen. This designation is used in health care and various industrial applications, where large quantities of oxygen are needed, and it typically involves liquid oxygen systems that can be converted to gaseous oxygen for use. Bulk oxygen systems are designed to store, transport, and dispense large volumes of oxygen safely and efficiently.

In contrast, high-pressure manifolds typically refer to setups used in distributing gases at high pressures but do not pertain specifically to storage capacity. Micro bulk systems are smaller and are designed for applications requiring less than 20,000 cubic feet of storage capacity. Vacuum systems are used for the removal of gases or vapors from an enclosed space and are not directly related to the storage of oxygen. These distinctions clarify why bulk oxygen is the appropriate term for systems exceeding the specified storage threshold.