When tested with an XRF instrument this small modern yellow Fiestaware plate had the following readings:
- Barium (Ba): 697 +/- 82 ppm
- Zinc (Zn): 13,200 +/- 400 ppm
- Copper (Cu): 320 +/- 60 ppm
- Iron (Fe): 999 +/- 196 ppm
- Vanadium (V): 1,150 +/- 85 ppm
- Titanium (Ti): 2,010 +/- 139 ppm
- Zirconium (Zr): 16,200 +/- 500 ppm
The dish was negative (non-detect) for Lead, Mercury, Arsenic, Cadmium and Antimony! #TruthInAdvertising!
Metals not listed were not detected by the XRF. Tests were done in consumer goods mode for a minimum of 60 seconds. Results are science-based and replicable.
Food surface and back of dish had similar levels when tested with an XRF instrument.
Note: Not all of the new Fiesta pieces (marked “Lead Free”) that I have tested have, in fact, been 100% Lead-free. Some have tested positive for very low levels of Lead (generally well below 90 ppm.) Some colors of the “Lead Free” Fiestaware have also tested positive for low levels of Cadmium and Arsenic (as well as other metals.)
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