Test Tube

About the Test Tube Icon

The Test Tube icon is a outlined style icon in the Science category, part of the Science & Lab icon pack. Featuring clean lines and transparent fills, making it especially suited for light-weight UI designs, dashboards, and interfaces where visual clarity is paramount. This icon is available as a high-quality PNG in multiple resolutions (256px and 512px) optimised for both web and mobile interfaces. All EzeIcons icons are original artwork, crafted on a 24x24px grid for consistent visual weight across your project.

When to Use the Test Tube Icon

Use the Test Tube icon in your science interfaces, test-tube, lab, flask workflows. This icon is particularly effective in user interface design where clear visual communication is essential. Common applications include navigation menus, toolbars, feature callouts, and interactive controls. At 24px it reads clearly in navigation bars and dense lists; at 32px it works well in buttons and form controls; at 48px or larger it makes an impact in hero sections and onboarding flows.

The outlined variant is ideal for interfaces that prioritise readability and a lightweight aesthetic — popular in productivity tools, dashboards, and documentation sites.

When pairing the Test Tube icon with text labels, maintain a consistent spacing of at least 6px between the icon and the label for legibility. For icon-only buttons or controls, ensure a minimum tap target of 44x44px to meet touch accessibility guidelines.

Accessibility Guidelines

When using the Test Tube icon, always include descriptive alt text for screen readers when the icon conveys meaning. For purely decorative icons, use aria-hidden="true" to hide it from assistive technologies. For interactive icon-only buttons, provide a visible text label or an aria-label attribute describing the action. Ensure sufficient colour contrast between the icon and its background — a minimum 3:1 ratio is recommended for non-text graphical elements under WCAG 2.1 guidelines.

How to Use the Test Tube Icon

Copy the code snippet below to use the Test Tube icon in your project. Choose your preferred framework from the tabs.

<img
  src="https://ezeicons.com/icons/test-tube.png"
  alt="Test Tube icon"
  width="24"
  height="24"
/>

// Install: npm install @ezeicons/react (coming soon)
// Or use directly as an <img> tag:
<img
  src="/icons/test-tube.png"
  alt="Test Tube"
  className="w-6 h-6"
/>

<!-- Or use directly as an <img> tag: -->
<img
  :src="'/icons/test-tube.png'"
  :alt="'Test Tube'"
  class="w-6 h-6"
/>

.icon-test-tube {
  background-image: url('https://ezeicons.com/icons/test-tube.png');
  background-size: 24px 24px;
  background-repeat: no-repeat;
  width: 24px;
  height: 24px;
  display: inline-block;
}