Nonferrous metal refining (MA-3000)
Roasting gases are used in the refining of non-ferrous metals including; copper, zinc, and lead.  These gases contain sulfurous acid gas, from which sulfuric acid is produced.  Mercury is also abundant in the crude sulfide ore, and it is therefore necessary to remove the mercury in the process.  In addition to the removal of the mercury, it must be measured and monitored in not only the gases, but the final products as well.

Fluorescent Tubes (TM-3A, TM-4)
Mercury is contained in fluorescent tubes for the light emitting properties phosphor/mercury interactions under electrical charge.  Since mercury is a main component, its content levels must be