Radiation Hazard Symbol - Universal Warning Sign for Ionizing Radiation #2216047 (License: Personal Use)

This high-contrast symbol features a black trefoil (three-bladed propeller) centered on a vivid yellow square with rounded corners, designed for maximum visibility and instant recognition. It is standardized by ISO 361 and IAEA guidelines for marking areas, containers, or equipment where radioactive substances or radiation-emitting devices are present. The design ensures legibility from a distance and under varied lighting conditions.

Used on signage in nuclear power plants, radiology departments, research labs, transport containers, and emergency response materials; targets professionals, safety officers, and the public seeking hazard awareness or regulatory compliance information.