Test Tube Bubbles color outline icon
Test tube holding liquid with bubbles rising out of it, framed in a circle
About the Test Tube Bubbles color outline icon
A round-bottomed test tube with a wide rim cap holds liquid up to a wavy fill line, with bubbles floating inside the sample and escaping above the mouth. It reads as a laboratory sample, a blood or chemistry test and an experiment in progress. Fits diagnostics apps, hospital and clinic sites, science lesson material, research reports and pharmaceutical packaging.
The tube is centered inside a thin circular badge, so the shape works as a stand-alone mark or as a button. Bubble circles vary in size to suggest motion. It sits well beside microscope, flask and pill icons; use 32 px and up so the bubbles stay separate.
This is the colour outline version of the test tube bubbles icon: the same line drawing in an accent colour, useful for highlighting a state, a category or a brand tone without adding visual weight.
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.
