Mercury lamps
Precaution while using Microscope
Mercury lamps
Some microscopes may have mercury lamps. Mercury is a dangerous substance and it is important to follow your manual for microscope use closely. If there is a mercury lamp explosion, the lab often needs to be evacuated and sealed until the proper department can clean up the mess.
Use of the microscope
Length of work period
10X OBJECTIVE IS IN POSITION
Microscope eyepieces
Do not use direct sunlight
BE CAREFUL 
Inappropriate lighting conditions
Positioning and focusing
Heavy users of microscopes
Proper microscope care
Environmental factors
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