Test Tube Icon - Science Lab Equipment Illustration #3370206 (License: Personal Use)

This vector-style illustration depicts a standard laboratory test tube with a rounded bottom and open top, outlined in bold black. The tube contains vivid magenta-colored liquid up to the third calibration mark, with four evenly spaced horizontal lines indicating measurement gradations. The clean, transparent background makes it suitable for digital overlays and infographics.

Commonly used in science education materials, lab safety guides, chemistry websites, and health-related content to symbolize experiments, chemical reactions, or diagnostics. Matches user intent for visual representation of lab equipment or scientific concepts.