Before entering a room with a chlorine leak, what is the first step that should be taken?

The first critical step before entering a room with a chlorine leak is to notify other operators. This action ensures that anyone in the vicinity is aware of the potential danger and can take appropriate precautions. It also allows for a coordinated response, potentially mobilizing other personnel to assist or evacuate if necessary.

Effective communication is key in hazardous situations, as it can help prevent injuries and ensure that the correct procedures are followed. After notifying others, the next steps might involve assessing the leak, putting on protective gear, and ensuring that equipment is turned off safely, but these actions should come after making sure that everyone is alerted to the danger. This sequence of actions is vital for maintaining safety and minimizing exposure to dangerous substances like chlorine.