NAPT has the largest selection of round robin artifacts distributed throughout North America.  Don't see the right ILC/PT, NAPT can also assist your organization in the development of a customized Intra Laboratory Comparison.

Custom ILC/PTs

NAPT works with your lab to develop the right Intra Laboratory Comparison that meets the needs of your organization. NAPT can administer support to your in-house ILC/PT or provide support as you administer your own ILC/PT using the Online Management Application.

Online Management Application

NAPT's Online Management Application allows you to design and manage your own ILC/PT's.  Built on top of NAPT's 17 years of management experience, take advantage of our tools to manage your ILC/PTs.  “NAPT's ILC/PT Online Management Application - The Metrology Community's Most Comprehensive Proficiency Testing Software Ever Designed.”

Full ILC/PT Services

Management Of Inter-laboratory Comparisons 

At NAPT, we provide our clients with an unbiased analysis of measurement processes to enhance awareness of their technical competence and data integrity.

Custom ILC/PTs

Intra-Laboratory Comparison

In the event NAPT cannot supply an ILC/PT to a lab, NAPT will work with the participating lab to develop an ILC/PT that meets the needs of that lab. NAPT will provide support for the lab to administer an in-house proficiency test through an Intra Laboratory Comparison.  NAPT can do this by either managing the INTRA for the participating lab or by referring the lab to purchase a license and use NAPT's Online Management Application to administer their own ILC/PT.

Mike Johnson


Mike Linn

Johnson Controls

Michael Bair

DH Instruments

Jim Mosher

MPC Walworth

Greg Minard

GM Powertrain Metrology Laboratory

Gaylord DeGroot


John Reynertson

Sturtevant Richmont

Rick Brion

Martin Calibration

LaVar Clegg

Interface, Inc.

Karl Klevens

Process Instruments Inc.

Ross Nelson

3M Corporate Metrology Lab

Charles Ellis


John Marcus

PTC Metrology

Lee Fletcher

QC Inspection Services, Inc

Tom Wiandt

Hart Scientific

Kevin Rust

MTS Systems Corporation

Chris Grachanen

Hewlett Packard

Online Management Application

Proficiency Testing Application

Manage your own ILC/PT tasks from start to finish.

Our software will help you:

  • Design an ILC/PT
  • Manage an ILC/PT
  • Analyze Data Submitted
  • Generate Reports
  • Access ILC/PT info via any browser
  • And More

“ILC/PT Online Management Application - The Metrology Community's Most Comprehensive Proficiency Testing Software Ever Designed.”