A row of vials or test tubes on top of a table.

Vials Or Test Tubes On A Table

Single Test Tube

A test tube that's three-quarters filled with liquid.

Three test tube samples on a rack, all filled with the same amount of liquid.

A test tube with measurements and liquid inside.

Two test tubes with liquid and a warning icon of an exclamation mark inside a triangle.

A lab test tube with liquid and measuring lines.