FAQ

Does NAPT follow PT plans created in the Customer Portal?
An organization can create a proficiency testing plan in their NAPT Customer Portal. Upon request, NAPT staff will assist in development of a proficiency te...
Tue, 26 Apr, 2022 at 4:04 PM
What is a normalized Error (En)?
A normalized error compares a lab’s measurement result and its associated uncertainty with a reference value and uncertainty to determine if they are in agr...
Wed, 9 Feb, 2022 at 1:14 PM
Does NAPT calculate uncertainties for participants?
No. It is the responsibility of the lab submitting results to calculate all uncertainties associated with any measurement made by them. It is not NAPT’s pla...
Wed, 9 Feb, 2022 at 1:12 PM
You don’t offer a kit that I need - what are my options?
NAPT Intra Manager, AKA Intra Wizard, is our latest online application that was designed for additional & specialized proficiency testing methods. NAPT ...
Wed, 9 Feb, 2022 at 11:35 AM
How do you want me to calibrate your artifact?
The main goal of any enrollment is to compare measurements using your processes and reference values and evaluate your results against other like organizati...
Wed, 9 Feb, 2022 at 1:17 PM
Can I retake a test?
Yes. If you require a retest, please contact napt@proficiency.org or call in directly at 952-303-6126 to discuss your options for taking a retest.
Wed, 9 Feb, 2022 at 2:29 PM
What’s the difference between a proficiency test (PT) and an interlaboratory comparison (ILC)?
An Interlaboratory Comparison (ILC) looks at measurement results between several laboratories. The purpose of an ILC could be to evaluate methods, different...
Wed, 9 Feb, 2022 at 11:42 AM
Why should I use NAPT vs. other proficiency testing providers?
When you compare NAPT against other metrology PT providers, you will find there really is no comparison. Compare NAPT’s full time staff to other PT provider...
Wed, 9 Feb, 2022 at 11:42 AM
I need help in deciding what PT kits to sign up for - what kind of help can I get?
Deciding what tests to enroll in may seem challenging and difficult, thankfully, NAPT is here to help. On NAPT's website, www.proficincy.org. There are...
Wed, 9 Feb, 2022 at 11:41 AM
What types of kits do you have?
NAPT services the metrology and test community and most of the kits offered are based on the needs of those participants. Our list of kits, including the di...
Wed, 9 Feb, 2022 at 12:03 PM