Test Tube with Green Liquid - Science Lab Icon #2044559 (License: Personal Use)

This vector-style illustration shows a clear glass test tube tilted at approximately 45 degrees, outlined in bold black. It contains a vivid lime-green liquid up to the second measurement mark, with four evenly spaced horizontal calibration lines along its body. The design is minimalist and universally recognizable in scientific communication.

Frequently used on educational websites, science blogs, lab service pages, or health-related platforms to represent experimentation, chemical analysis, diagnostics, or research. Matches user intent for visual shorthand in STEM content.