Test Tube Icon - Scientific Lab Equipment Symbol #297182 (License: Personal Use)

This vector-style icon depicts a classic glass test tube tilted diagonally, featuring four horizontal measurement lines along its body. Rendered in high-contrast white against a solid black background, it emphasizes clarity and recognizability for digital interfaces. The design follows modern flat-icon conventions while preserving essential scientific symbolism.

Used in educational platforms, healthcare dashboards, science blogs, or app icons to represent labs, experiments, diagnostics, or chemistry topics; aligns with user intent seeking visual cues for scientific content or tools.