FAQ
An Interlaboratory Comparison (ILC) involves comparing measurement results from multiple laboratories. The purpose of an ILC may include evaluating methods,...
Wed, 30 Apr, 2025 at 9:09 AM
A normalized error (En) compares a laboratory’s measurement result and its associated uncertainty to a reference value and its uncertainty, in order to dete...
Wed, 30 Apr, 2025 at 9:17 AM
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
Deciding which proficiency tests to enroll in can feel overwhelming—but NAPT is here to help. On our website, www.proficiency.org, there are detailed explan...
Wed, 30 Apr, 2025 at 9:30 AM
No. It is the responsibility of the laboratory submitting results to calculate all uncertainties associated with their measurements. It is not NAPT's ro...
Wed, 30 Apr, 2025 at 9:38 AM
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
NAPT offers two different tiers for utilizing the Intra Manager: NAPT Assisted & Self-Managed. When selecting a NAPT Assisted, NAPT staff will coll...
Wed, 9 Feb, 2022 at 3:10 PM
Upon receiving your kit, please inspect all contents carefully to ensure there are no missing items or damage. Once the inspection is complete, log in ...
Wed, 30 Apr, 2025 at 9:50 AM
Organizations can create a Proficiency Testing (PT) Plan directly within their NAPT Customer Portal. Upon request, NAPT staff are available to assist with t...
Wed, 30 Apr, 2025 at 10:00 AM
The En value may differ because the values used in the calculation by the participant and by NAPT are not always identical. The values used on both prelimin...
Wed, 30 Apr, 2025 at 9:08 AM