Nuclear Symbol Transparent #6486811 (License: Personal Use)

This standardized trefoil symbol, adopted by the IAEA and ISO, features three black blades spaced at 120° around a central circle on a bright yellow background, enclosed by a black border. It was first designed in 1946 at the University of California, Berkeley, and has since become the global standard for indicating radioactive materials and radiation-emitting equipment. Its high-contrast design ensures visibility and immediate recognition in emergency and controlled environments.

Used on signage, packaging, equipment, and safety documentation in nuclear power plants, medical imaging departments, research labs, and transport containers for radioactive substances. Matches user intent for hazard awareness, safety compliance, or educational content about radiation risks.