After hot work, what is the minimum duration for a fire watch to remain on scene?

The minimum duration for a fire watch to remain on the scene after hot work is 30 minutes. This time frame is established because it allows for the identification and response to any potential ignition sources that may result from the hot work activities. During the cooling-down period, the heat generated from the work can still pose a fire risk, particularly if flammable materials are present nearby.

The 30-minute duration is considered a standard safety practice in many industries, as it provides an adequate buffer to monitor the work area for smoldering or residual fires that could ignite due to the heat. It is important for the fire watch to remain vigilant during this period, as fires can ignite long after the hot work has ceased if the area is not monitored properly. This safety protocol helps to prevent accidents and ensure a safer working environment.