Vintage Wilkerson Glass blue bowl: Lead-free, Arsenic-free, Mercury-free (10 ppm Cadmium & 1,451 ppm Antimony)

The full XRF test results for the vintage blue glass bowl by Wilkerson Glass (pictured here) are below.

Some information about the logo mark found on this glassware item:

60-second test

• Lead (Pb): non-detect
• Cadmium (Cd): 10 +/- 2 ppm
• Mercury (Hg): non-detect
• Bromine (Br): 10 +/- 1 ppm
• Chromium (Cr): 385 +/- 109 ppm
• Iron (Fe): 272 +/- 42 ppm
• Cobalt (Co): 119 +/- 22 ppm
• Copper (Cu): 312 +/- 18 ppm
• Zinc (Zn): 14,300 +/- 200 ppm
• Indium (In): 24 +/- 3 ppm
• Tin (Sn): 730 +/- 11 ppm
• Antimony (Sb): 1,451 +/- 21 ppm
• Barium (Ba): 2,272 +/- 36 ppm
• No other metals were detected in consumer goods mode.

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Tamara Rubin is a multiple-federal-award-winning independent advocate for childhood Lead poisoning prevention and consumer goods safety, and a documentary filmmaker. She is also a mother of Lead-poisoned children (two of her sons were acutely Lead-poisoned in 2005). Since 2009, Tamara has been using XRF technology (a scientific method used by the U.S. Consumer Product Safety Commission) to test consumer goods for toxicants (specifically heavy metals — including Lead, Cadmium, Mercury, Antimony, and Arsenic). All test results reported on this website are science-based, accurate, and replicable. Items are tested multiple times to confirm the test results for each component tested. Tamara’s work was featured in Consumer Reports Magazine in February of 2023 (March 2023 print edition).