The best place to find a complete listing of all of the API proficiency testing programs is in the current year's catalog. The current API Catalog is available to view and download in the Getting Started FAQ section. You may also access it on the API website under the Catalog heading. To find a specific program or analyte, we recommend using the "search"/"find" feature or you may utilize the Index in the back of the catalog.
If you are looking for a specific program or analyte that you do not see listed in the current API Catalog, please contact Technical Support at TechSupport@api-pt.com or 800-333-0958.