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NAPT Makes the Process Simple


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Use our simple online order form or call (952) 303-6126.


Receive Materials

The NAPT Sponsored ILC-PT Kit & any necessary accessories will be shipped to you. 


Submit Data and Review Results

Use the convenient NAPT Customer Portal to submit your test results and access your reports.


Ship Artifacts

We’ll provide an address to ship the kit to the next participant. 

Same Tests. Reduced Pricing. Members Save on Every Enrollment

NAPT Fee Structure

Members receive at least a 20% Discount on all purchases.

Service NAPT Member Price Regular Price
NAPT Sponsored ILC/PT * $556 $695
Additional Submittal $100 $125
Self-Managed Intra $316 $395
NAPT Assisted Intra $716 $895
Accreditation Manager $1,036 $1,295
Annual Membership ** $200 N/A

* Purchase multiple ILC-PTs at once to receive larger discounts.  Our members who purchase 3 to 5 ILC-PTs in a single order receive a 25% discount.  Members who purchase 6 to 10 ILC-PTs in a single order receive a 30% discount.  Need to order more than 10.  Contact to setup a custom plan.

** Membership is purchased per location.  For example, if your lab has 4 locations, in order to receive the discount you would purchase the membership for each of the four locations.

For a list of all NAPT Payment Policies and Fee Structure.

Find a Kit

Over 100 NAPT Sponsored Kits to meet your proficiency testing needs.

KITS, Electrical-RF/Microwave ATNR dB Loss-210

Attenuators Set of 5 Power Meter

The intent of this ILC/PT is to provide a means for the participant to determine the appropriateness and effectiveness of participant practices, training, and measurement uncertainty relating to the calibration of RF Attenuators between 1 and 26.5 GHz.

This ILC/PT contains a set of 5 attenuators; each is a 20 dB, 3.5 mm device.

Participants will utilize their practices to perform 60 separate attenuation measurements, as they connect each device, perform dB Loss measurement at a predetermined four frequencies, remove the device, rotate the device per instructions, reconnect, perform measurements at the same four frequencies, remove and rotate the device again and reconnect to perform a third set of measurements. The average of the three measurements at each frequency is reported, and the entire process is repeated with the remaining 4 attenuators.

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KITS, Electrical-RF/Microwave ELECTRICAL-HP5361B

Frequency Counter (High Stability)

The intent of this ILC/PT is to provide participant laboratories a means to demonstrate technical competence in the measurement and/or calibration of time base frequency. The reported value and associated uncertainty of participant measurement process will be evaluated.

Laboratories involved in time/frequency measurements in the 10E-10 range will benefit from this test. Most electrical calibration laboratories have equipment necessary to verify time base stability.

Artifact in kit: Hewlett Packard - 5361B Frequency Counter

HP 5361B

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Proficiency Testing is Crucial

Proficiency testing plays a vital role in a lab’s quality assurance efforts and is required by major accrediting bodies. Routine testing can also benefit your lab in multiple other ways.

  • Maintain Accreditation
  • Ensure Technical Competence
  • Uphold Quality Standards
  • Monitor Lab Performance
  • Improve Processes
  • Maintain Accreditation
  • Ensure Technical Competence
  • Uphold Quality Standards
  • Monitor Lab Performance
  • Improve Processes