What is the minimum fire resistance rating for a barrier between 3,500 SCF locations?

The minimum fire resistance rating for a barrier between locations that store 3,500 Standard Cubic Feet (SCF) of LPG or CNG is indeed set at 2 hours. This rating is established to ensure that in the event of a fire, the barrier provides sufficient time to prevent the spread of fire and allows for safe evacuation and response. The 2-hour rating is specifically designed to protect areas with higher quantities of flammable gases, recognizing the increased risk associated with these larger quantities.

In scenarios involving flammable materials, code requirements place a premium on safety and risk mitigation, leading to stricter standards for fire resistance in structures that house significant amounts of hazardous materials. Thus, establishing a 2-hour fire resistance rating reflects a balance between safety measures necessary for handling large quantities of LPG or CNG while also considering the practical aspects of construction and functionality in industrial or commercial settings.