RE: Prussian Blue

["Kent, Michael D." <Michael.Kent@nmcco.com>]

Prussian Blue is widely used in the Navy for "Blue Checking" Valve stem and disc assemblies.  



It is also widely used during the Blue Nose Ceremony.  This is when a Naval Vessel crosses into the artic circle.  I do not know of anyway to quantify doses to Prussian Blue (it was only applied externally), but I know of no one getting sick, from Prussian Blue, that is.



Michael D. Kent  

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