Early radiation warning symbol

Early radiation warning symbol

Radiation

Hand drawn version of an early radiation warning symbol in a November 1953 draft for a Subcommittee on Regulation of Radiation Exposure meeting held in Washington, D.C. The radiation warning symbol was first created in the late 1940s at the University of California's Radiation Laboratory in Berkeley. It was not until the 1950s, however, that the radiation symbol was implemented as part of ANSI standard Z535, as published by the National Electrical Manufacturers Association. Located throughout Taylor's papers are numerous hand drawn early examples of the symbol. These early radiation warning symbols were discussed and drawn by members of committees of which Taylor was involved.

National Council on Radiation Protection and Measurements

1953 November

Lauriston Sale Taylor Papers, 1904-1999 (inclusive), 1928-1989 (bulk). H MS c334.

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Lauriston Sale Taylor Papers, 1904-1999 (inclusive), 1928-1989 (bulk). H MS c334. Harvard Medical Library, Francis A. Countway Library of Medicine, Boston, Mass.