Test Tube with Blue Liquid - Scientific Lab Equipment Illustration #3340860 (License: Personal Use)

This flat-style vector image depicts a standard glass test tube with a rounded bottom and open top, filled with vibrant blue liquid up to the sixth graduation mark. The tube features evenly spaced black calibration lines along its right side, suggesting precise volume measurement. The clean, minimalist design emphasizes clarity and is suitable for educational or scientific visual communication.

Commonly used in educational websites, laboratory manuals, chemistry infographics, and health-science blogs to represent experiments, chemical reactions, or sample analysis. Matches user intent for visual aids in STEM content creation.