Search Available Tests

PTI has a wide array of proficiency tests available. Click below to view tests. Register your laboratory to view details and availability calendars.

Register Your Laboratory

Registration is quick, easy, and free. You will need to register to view details of tests, check availability and reserve tests.

Receive Your Test Results!

Tired of waiting weeks for you test results? Our process provides your results within hours of data submission in your secure portal.


Here are five reasons to use PTI

Guaranteed delivery in your reserved time slot
Seven work days in your lab
Easy to use data entry sheets
Same day preliminary results!
Portal access for all results

Total Program Management (TPM)

PTI can help you manage your entire proficiency testing requirement. We can reserve your tests to suit your schedule and provide all test results in your secure portal. And it's free.

Giving Back

We care about kids, vets and first responders. A portion of the proceeds from every test will be donated to St. Jude's Children's Research Hospital and Tunnel to Towers Foundation.

Multi-Site Laboratories

PTI can help manage all your proficiency tests. We will help design a scheme that's right for you and dedicate artifacts to your labs only. Contact us for discounts.


We offer consultation for laboratories. From complete system set up to measurement uncertainty assistance.