Test Tube Icon - Science Lab Equipment Symbol for Education & Research #3076607 (License: Personal Use)

This black-and-white vector-style icon depicts a classic conical-bottom test tube with four horizontal measurement lines along its side, indicating volume gradations. The design emphasizes clarity and universality, making it suitable for digital interfaces, infographics, and instructional content. Its bold outline ensures high visibility at small sizes while retaining professional scientific credibility.

Used on educational platforms, science blogs, lab equipment supplier sites, or health/chemistry-related apps to visually represent experiments, diagnostics, or research processes. Matches user intent for finding lab imagery, icons for UI/UX design, or science-themed visual assets.