A new global symbol aims to make reusable packaging as easy to identify as recyclable materials, helping consumers know ...
"Based on papers presented at the Center for Archaeological Investigation's Thirteenth Annual Visiting Scholar Conference, held March 30-31, 1996, at Southern Illinois University, Carbondale"--P. x.
The ionizing radiation symbol, featuring three curved blades emanating from a central point, has been used since 1946 to warn workers, scientists and the public of the presence of radioactive material ...
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