Test Tube black filled icon
Solid filled test tube glyph used for laboratory and science interfaces
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About the Test Tube black filled icon
A single laboratory test tube is rendered as a compact filled glyph, standing for sample collection, chemical testing and analysis. It works in lab information systems, diagnostic and blood test booking flows, chemistry and biology teaching material, pharmaceutical research dashboards and science themed presentations where a quick visual cue for experiments and measurements is needed.
The solid fill keeps the silhouette dense and high contrast, so it survives inversion on dark backgrounds and small toolbar sizes. It groups with microscope, flask and beaker icons in a laboratory set. Use at 24 px or larger and give it clear padding.
This is the solid black filled version of the test tube icon: a bold silhouette that reads clearly at 16-24 px and on dark or busy backgrounds, and prints well in one colour.
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.
