What is the purpose of a flow test in standpipe systems?

The purpose of a flow test in standpipe systems is to evaluate system performance and ensure adequate water flow and pressure. This is essential for confirming that the sprinkler or standpipe system can effectively deliver the required amount of water during a fire event. An adequate flow and pressure are critical because they determine whether the system can suppress or control a fire sufficiently, helping to protect lives and property.

Flow testing assesses various parameters, such as the water supply's capacity and the pressure at which water is delivered at different points in the system. This information helps ensure compliance with fire safety codes and standards, bolstering the reliability of the standpipe system when it is needed most. In contrast, the other answers do not address the critical performance and safety concerns that flow tests are designed to assess.