Test Tube Circle Badge black outline icon
Outline test tube with measurement marks and two bubbles inside a circular frame
About the Test Tube Circle Badge black outline icon
A round-bottomed test tube with a thick rim, five measurement marks up its side and two bubbles floating above the opening, all set inside a circular badge outline. The bubbles imply an active reaction, so it works for laboratory information systems, chemistry and biology e-learning modules, clinical testing and diagnostics pages, research report slides and pharmaceutical product sites.
The tube is centered on the vertical axis with the graduation ticks stepping evenly upward, and the two unequal bubbles break the symmetry so the composition does not feel static. The circle frame makes it interchangeable with other badged science icons such as microscope, flask and DNA. Keep the badge above 28 px or the graduation marks merge into a single band.
This is the black outline version of the test tube circle badge icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
Get it free as an SVG vector or transparent PNG (16-512px), copy the SVG code, or restyle it in the free online editor — recolor any part, add gold, neon or gradient effects, animate it, or export EPS, PDF and DXF.
Free for personal and commercial use with attribution.
