This sample matrix vocabulary is under active development. Currently a first draft is available as an Excel file. Main categories are shown below.

  • Agricultural
  • Biologics
  • Chemicals (including metals, alloys, and materials)
  • Commercial Products
  • Environmental (including Geological)
  • Food/Beverage
  • Miscellaneous (needed?)
  • Petrochemicals
  • Pharmaceuticals
  • Reference Materials
  • Wastes (including hazardous wastes)

The current draft has the agricultural classes of materials identified and linked to other database and domain terminologies and ontologies.  This will be done done for the other main groups as domain experts provided feedback about completeness.

If you have any suggestions about vocabulary terms or main categories please contact This email address is being protected from spambots. You need JavaScript enabled to view it..


  • 10-03-2014: Initial list of main categories added.
  • 12-08-2014: List of categories revised.  First draft Excel file added.