Test Tube Icon - Science, Lab, and Chemistry Visual Asset #74979 (License: Personal Use)

This vector-style icon depicts a classic laboratory test tube tilted diagonally, containing vivid lime-green liquid up to the third刻度 mark. Bold black outlines define the glass shape and four evenly spaced measurement lines, emphasizing precision and clarity. The high-contrast design ensures visibility across digital interfaces.

Used in educational platforms, science blogs, lab equipment catalogs, or health-tech dashboards to represent experimentation, chemical analysis, or diagnostic testing; matches user intent for visual shorthand in STEM content.