Vintage (1990s?) TYCO plastic building blocks (Duplo-style): Lead-free, Cadmium-free, Arsenic-free!
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Green TYCO building block – 30 seconds Copper (Cu): 150 +/- 15 ppm Nickel (Ni): 13 +/- 8 ppm Iron (Fe): 55 +/- 20 ppm Titanium (Ti): 2,167 +/- 295 ppm Continue reading below the image. Red TYCO building block – 30 seconds Barium (Ba): 189 +/- 108 ppm Bromine (Br): 19 +/- 3 ppm Iron…