If a thermometer spills mercury on the floor, what should the technician do first?

When mercury spills from a thermometer, the most immediate concern is the safety of individuals in the vicinity. Evacuating the room first ensures that no one is exposed to the toxic substance, as mercury can pose serious health risks, including respiratory and neurological effects. By removing people from the area, you reduce the risk of inhalation or contamination, which is critical in managing hazardous materials.

Once the area is secured and evacuated, subsequent actions can involve closing doors to contain the spill and prevent others from entering the contaminated area, as well as following specific guidelines for the safe disposal of the mercury and cleanup procedures. However, prioritizing human safety by evacuating the room should always come first in scenarios involving hazardous material spills.