For antifreeze systems with a capacity larger than 150 gallons, how many additional test points are required for every 100 gallons?

In antifreeze fire protection systems with a capacity larger than 150 gallons, the NFPA guidelines indicate that one additional test point is required for every additional 100 gallons beyond the initial 150 gallons. This practice is rooted in the need for comprehensive testing and maintenance of the system to ensure it operates effectively and reliably in the event of a fire.

By establishing a testing protocol that includes additional points as the size of the system increases, the inspection process can better assess the integrity and performance of the antifreeze solution within the system. This is crucial since the effectiveness of an antifreeze system depends on the correct concentration and distribution of the antifreeze solution throughout the piping network.

Thus, understanding that systems larger than 150 gallons necessitate one additional test point for every 100 gallons is essential for compliance with NFPA standards and ensures optimal readiness of the system.