Emerging Best Practices

Special Conditions

The HPD Collaborative recognizes that there are limitations to disclosure in today’s emerging “era of Transparency.”  There is still much to be learned, and for some types of materials, the ability to identify and characterize substances and/or CAS numbers may be challenging, while in other cases there may be specific issues relating to the hazard screening by CAS number.  Therefore, the HPD Collaborative is creating specific guidelines to address known issues (“Special Conditions”).”

Work is underway on the following:

  • Biological material
  • Metal Alloy material
  • Float Glass
  • Ceramics
  • Geological material
  • Reaction products
  • Recycled content – mixtures
  • Material with CAS RN but no specific molecular structure
  • Defined substances without identifier
  • Plastics and polymers
  • Mixed hardware and fasteners
  • Electronics
  • Form specific hazards

As guidelines and resources are developed for each of these materials, they will be posted to this web page.  If you are interested in participating in this effort, contact Joel Todd at jtodd@hpd-collaborative.org.