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Radioactive Warning Sign - Universal Symbol for Radiation Hazard #292920 (License: Personal Use)

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Yellow triangular warning sign with black radioactive trefoil symbol indicating ionizing radiation hazard.

About this clipart

This is the standard ISO 361 radiation warning symbol: a black trefoil (three-bladed propeller) centered on a yellow equilateral triangle with a thick black border. Designed in 1946 at the University of California, Berkeley, it conveys immediate danger from alpha, beta, gamma, or neutron radiation sources. Its high-contrast color scheme ensures visibility and universal recognition across languages and cultures.
Used on containers, doors, equipment, and signage in nuclear facilities, medical radiology departments, research labs, and transport vehicles carrying radioactive substances. Matches user intent for safety education, regulatory compliance, emergency response training, or hazard identification.
JPG 425×371 20.8 KB
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Related Cliparts: The iconic yellow and black radioactive warning sign alerts to ionizing radiation hazards. Learn its meaning, history, and safety implications.

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