Objective Method to Quantify Ecological Toxicity between Friction Materials

Paper #:
  • 2017-01-2495

Published:
  • 2017-09-17
Abstract:
California and Washington recently passed legislation to limit certain constituents in brake friction materials. As part of the California (CA) legislation brake friction brake pad manufacturers need to perform an alternative assessment to identify potentially safer environmental and toxicological choices for friction material production. Copper, chromium, lead, and other compounds have been identified as particularly harmful to the environment. This paper contains the methodology behind an objective and comprehensive alternative assessment to quantify the ecological impact of friction materials. Utilizing raw material specific Chemical Abstracts Service (CAS) numbers and their associated acute toxicology values, this method estimates the total toxicological impact of finished friction materials in an attempt to allow the manufacturer to screen greener alternatives.
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