Test Tube Icon - Scientific Lab Equipment Illustration #297168 (License: Personal Use)

This black-and-white vector-style illustration depicts a standard conical-bottom test tube with four horizontal calibration lines indicating volume measurements. The design emphasizes clarity and universality, making it suitable for digital interfaces, print materials, and instructional content in chemistry, biology, or healthcare fields. Its minimalist aesthetic ensures legibility at small sizes and across diverse backgrounds.

Commonly used on educational websites, lab supply catalogs, science-themed apps, or as an icon in UI/UX design to represent experiments, diagnostics, or chemical analysis. Matches user intent for visual cues related to laboratory work or scientific procedures.