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Biological Hazard Warning Symbol

  • 1966

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Overview of the use standards for the biohazard warning symbol, prepared by Charles L. Baldwin, an environmental-health engineer who worked on developing the symbol.

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  • 21.5 cm W x 28 cm H
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  • Courtesy of Science History Institute

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  • Box Safety 00360, Folder 00342F11

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Institute blog post
The Biohazard Warning Symbol: In pursuit of something memorable and meaningless.

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Cite as

Baldwin, Charles L. “Biological Hazard Warning Symbol,” 1966. Dow Chemical Historical Collection, Box Safety 00360, Folder 00342F11. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/yashxvf.

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