Which reference standard covers the storage of liquid propane gas?

The correct choice focuses on NFPA 58, which specifically addresses the storage and handling of liquefied petroleum gases, including propane. This standard outlines the requirements for the proper design, installation, and maintenance of propane storage facilities, ensuring safety measures are in place to protect both people and property from the potential hazards associated with propane.

NFPA 58 includes provisions related to storage tank location, emergency response procedures, and safety equipment requirements, making it crucial for anyone involved in the propane industry to be familiar with its guidelines. This standard is vital for ensuring that propane is stored safely and managed effectively, thereby reducing the risk of accidents related to propane storage.

The other standards listed serve different purposes. For instance, NFPA 54 pertains to the installation of gas piping systems and appliances using natural gas and propane; NFPA 70 is the National Electrical Code, dealing with electrical safety standards; and NFPA 72 focuses on fire alarm and signaling systems, none of which directly cover propane storage specifics.