When tested with an XRF instrument the small Japanese “Signature Collection Select Fine China” bowl (in the “Petite Bouquet” pattern) pictured here had the following readings:
Flowers in center of food surface of dish:
- Lead (Pb): 3,706 +/- 107 ppm
- Tin (Sn): 43 +/- 15 ppm
- Zinc (Zn): 1,807 +/- 95 ppm
- Iron (Fe): 1,546 +/- 191 ppm
- Vanadium (V): 3,412 +/- 158 ppm
- Titanium (Ti): 438 +/- 57 ppm
- Platinum (Pt): 141 +/- 64 ppm
Plain white area of food surface of dish:
- Zinc (Zn): 1,657 +/- 83 ppm
- Iron (Fe): 1,368 +/- 168 ppm
- Bismuth (Bi): 24 +/- 10 ppm
- Vanadium (V): 103 +/- 21 ppm
- Titanium (Ti): 250 +/- 34 ppm
Vine trim on food surface of dish (green & white):
- Lead (Pb): 3,144 +/- 87 ppm
- Chromium (Cr): 190 +/- 75 ppm
- Zinc (Zn): 2,208 +/- 99 ppm
- Iron (Fe): 2,339 +/- 207 ppm
- Vanadium (V): 277 +/- 33 ppm
- Titanium (Ti): 241 +/- 38 ppm
- Cobalt (Co): 453 +/- 94 ppm
Logo area on back of dish (center of logo with feather):
- Lead (Pb): 7,483 +/- 186 ppm
- Zinc (Zn): 2,533 +/- 116 ppm
- Iron (Fe): 4,178 +/- 290 ppm
- Platinum (PT): 191 +/- 76 ppm
- Cobalt (Co): 381 +/- 108 ppm
This dish was tested for a minimum of 60-seconds on each component with each (repeated) test to make sure to report the most accurate possible reading.
I will update this post with more information shortly, but in the meantime – please read some of the other posts I have written about vintage dishware to better understand the test results reported on this website.
As always – thank you for reading and for sharing my posts.
Please let me know if you have any questions.
Tamara Rubin
#LeadSafeMama
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