During hose testing, for what duration must the hose maintain the set pressure?

To ensure the integrity and safety of fire hose under pressure, it is required that the hose maintain the set pressure for a duration of 5 minutes during testing. This timeframe is essential to allow for thorough inspection of the hose for any potential leaks or weaknesses. By maintaining pressure for this specified duration, firefighters can confirm that the hose is capable of withstanding operational conditions without failure.

The standard testing procedures are designed to mimic real-world usage, while also incorporating safety measures that ensure fire department equipment is always ready for emergency situations. A longer or shorter testing duration would not provide an adequate assessment of the hose's reliability, making the 5-minute requirement a well-established and necessary benchmark in hose testing protocols.