FAQ

What are reference values?
The reference value is a value against which your results are compared. In any proficiency test, the results are only as good as the established values assi...
Mon, 14 Feb, 2022 at 1:19 PM
Do your technical advisors have access to my results?
No. The technical advisors assigned to a proficiency test do not have access to client data. The technical advisors are given raw data only. We know that on...
Mon, 14 Feb, 2022 at 1:20 PM
What are the benefits of Membership?
ILC/PT Membership Discounts  Automatic enrollment in NAPT’s Rewards Program to earn points towards free ILC/PT participations Access to Technical Experti...
Mon, 14 Feb, 2022 at 1:21 PM
Is the Membership fee annual or one time?
The membership fee is billed annually and covers a full calendar year. Many benefits are included with a membership; See "What are the benefits of Memb...
Mon, 14 Feb, 2022 at 1:22 PM
What is an artifact?
Calibration is the act of comparing a device under test (DUT) of an unknown value with a reference standard of a known value. An artifact is the measurement...
Fri, 25 Mar, 2022 at 12:14 PM
What are the costs to participate?
NAPT's Fee Schedule is posted under Services.  NAPT believes you deserve real value for your participation and it is important to choose a trusted prof...
Mon, 14 Feb, 2022 at 1:21 PM
Is NAPT accredited?
NAPT is an ISO/IEC 17043 accredited provider. NAPT Is the only proficiency test provider that can meet all of your needs via our offerings of proficiency te...
Mon, 14 Feb, 2022 at 1:20 PM
Will my accreditation body accept reports issued by NAPT?
As an accredited Proficiency Testing provider, NAPT reports are recognized and accepted by all the leading accreditation bodies.
Mon, 14 Feb, 2022 at 1:18 PM
Why is NAPT nonprofit?
Simple answer: NAPT could not provide the services it does to the metrology community without it being nonprofit. Only because of the numerous sponsors, the...
Wed, 9 Feb, 2022 at 11:42 AM
Why did I pass my preliminary report but fail my final report?
Your results will depend, in large part, upon the reference value assigned to the artifact(s) contained in the ILC/PT.  See “What are reference values?” que...
Mon, 14 Feb, 2022 at 1:22 PM