Test Tube Icon - Science Lab Equipment Symbol for Education & Web Design #286178 (License: Personal Use)

This high-contrast vector illustration depicts a classic laboratory test tube filled with a vivid yellow liquid, featuring four horizontal black calibration marks along its side. The clean, bold outlines and flat color scheme make it highly legible and scalable for digital use. It’s designed for clarity in educational materials, scientific presentations, and web interfaces where visual symbolism of experimentation is needed.

Commonly used in STEM educational websites, science-themed landing pages, infographics about lab procedures, or as an icon in medical/chemistry apps. Matches user intent for quick visual recognition of laboratory equipment or chemical testing.