What psi drop within 5 minutes indicates a failing hose test?

A psi drop of more than 10 psi within 5 minutes indicates a failing hose test because it demonstrates a significant loss of pressure that suggests there may be leaks or weaknesses in the hose material. Fire hoses are critical components in firefighting, as they must maintain their integrity under high pressure to effectively deliver water. A drop exceeding 10 psi within a short timeframe is generally understood as a threshold indicating that the hose is not performing to safety standards, potentially putting users at risk and hindering firefighting operations.

In the context of fire safety procedures, maintaining pressure within hoses is vital. A drop of 10 psi can indicate that the hose may no longer adequately function, increasing the risk of failure during critical times when water delivery is necessary. Therefore, adherence to this threshold is essential for ensuring operational reliability and safety during firefighting efforts.