Test Tube Measuring Marks black outline icon
Outline test tube with stopper cap, graduation lines and liquid in the lower half
About the Test Tube Measuring Marks black outline icon
A round-bottomed test tube sealed with a rounded stopper at the rim, marked with five short graduation lines down the upper wall and holding a wavy liquid level in the lower half. The measuring marks make it read as a sample being dosed or analyzed, which suits lab and diagnostics apps, blood test booking flows, clinic and hospital sites, science education material and research presentations.
The tube is narrow and tall with parallel walls and a U-shaped base, and the cap overhangs slightly on both sides to separate it from the body. The graduation lines alternate in length for rhythm. Pair it with flask, microscope and blood drop icons; at 16px keep only two or three marks.
This is the black outline version of the test tube measuring marks icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
