Sonoma County Community Blood Bank – Blood Type Token (vintage?): 262 ppm Lead + 13 ppm Cadmium.
XRF test results for the coin / token pictured. 75-second reading Lead (Pb): 262 +/- 30 ppm Cadmium (Cd): 13 +/- 9 ppm Mercury (Hg): non-detect Bromine (Br): non-detect Chromium (Cr): non-detect Iron (Fe): 468 +/- 37 ppm Nickel (Ni): 100 +/- 44 ppm Copper (Cu): 875,400 +/- 500 ppm Zinc (Zn): 122,800 +/- 300…