Biohazard Symbol - Meaning, Usage, and Safety Significance #3245643 (License: Personal Use)

This black-and-white biohazard symbol consists of three interlocking arcs radiating from a central circle, forming a trefoil shape. Created in 1966 by Charles Baldwin at Dow Chemical, it was engineered for high visibility and cross-cultural recognition without relying on text. It is standardized under ISO 3864-3 and used globally to mark infectious agents, medical waste, and contaminated equipment.

Used on lab doors, sharps containers, transport labels, and safety signage; appears in healthcare, research, industrial hygiene, and emergency response contexts. Matches user intent for hazard identification, safety compliance, or educational reference.