Skip to Main Navigation
Skip to Page Content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it's official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Testing Status of Crumb Rubber 16008



Synonyms/Common Names

  • Crumbrubber various

Short-Term Toxicity

  • 14 days  (C16008)  Completed 
    • Mice: B6C3F1/N
    • Dose: Mice: 0 or 1250 mg/kg (oral gavage), 0 or 50, 000 ppm (dosed-feed), 100% bedding or 50:50 wt:wt% crumb rubber:bedding (bedding exposure).