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How It Works

NAPT Makes the Process Simple

Step
01

Order Kits

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

Step
02

Receive Materials

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

Step
03

Submit Data and Review Results

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

Step
04

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 napt@proficiency.org 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, Other Mechanical MASS-101

Mass Weight Set

This program is intended to provide a means for the participant laboratory to validate the technical competence of the laboratory in the calibration of small weights. This ASTM Class 1 weight kit contains 9 items ranging from 1 g to 100 g.

Reference values and associated uncertainties are provided by an accredited laboratory who concentrates on these measurements. Reference uncertainties vary from 1.6 µg to 12 µg depending on size.

Participants are expected to be familiar with handling and calibration of precision weights and have appropriate lab equipment and  measurement uncertainties for calibration of similar weights.

Artifacts in kit: Troemner Gram Weights, 1g, 2g (x2), 5g, 10g, 20g (x2), 50g, 100g

mass weight set

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KITS, Other Mechanical MASS-216

Mass Level One

New class 1 - Pre-Qualification is required to participate in this ILC/PT. 

The primary purpose of this ILC/PT is to provide a means and opportunity for participants to demonstrate their proficiency (e.g. effective and appropriate use of the participant’s equipment, procedures, methods, and measurement uncertainty, and the ability to follow instructions) in the calibration of a Class 1 weight set.  

By participating, participants will demonstrate technical competence for the measurement of parameters associated with weights of similar size and weight class.  This weight set contains 10 weights ranging from 100 g to 500 mg. Participants will use their lab procedures to perform measurements of each weight in the set.

Participants are expected to be familiar with handling and calibration of mass standards, have all necessary auxiliary equipment to support the measurement and have measurement uncertainties appropriate for calibration of similar standards.

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KITS, Other Mechanical MASS-317

Mass Level Three-A

The primary purpose of this ILC/PT is to provide a means and opportunity for participants to demonstrate their proficiency (e.g. effective and appropriate use of the participant’s equipment, procedures, methods, and measurement uncertainty, and the ability to follow instructions) in the calibration of a Class F weight set.  

By participating, participants will demonstrate technical competence for the measurement of parameters associated with weights of similar size and weight class.  This weight set contains 6 weights ranging from 10 lb to 0.5 lb.

Participants will use their lab procedures to perform measurements of each weight in the set.

Participants are expected to be familiar with handling and calibration of mass standards, have all necessary auxiliary equipment to support the measurement and have measurement uncertainties appropriate for calibration of similar standards.

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KITS, Other Mechanical MASS-417

Mass Weight Set / Class F

The primary purpose of this ILC/PT is to provide a means and opportunity for participants to demonstrate their proficiency (e.g. effective and appropriate use of the participant’s equipment, procedures, methods, and measurement uncertainty, and the ability to follow instructions) in the calibration of a Class F weight set.  

By participating, participants will demonstrate technical competence for the measurement parameters associated with weights of similar size and weight class.  This weight set contains 10 weights ranging from 0.2 lb to 0.001 lb.

Participants will use their lab procedures to perform measurements of each weight in the set.

Participants are expected to be familiar with handling and calibration of mass standards, have all necessary auxiliary equipment to support the measurement, and have measurement uncertainties appropriate for the calibration of similar standards.

Mass weight set

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KITS, Other Mechanical ROUNDNESS-111

Roundness

The intent of this ILC/PT is to provide a means for laboratories to determine the appropriateness and effectiveness of participants practices, training, and measurement uncertainty calculations relating to the measurement of Roundness. This ILC/PT contains a 1 inch Class XXX Plain Plug.

Participants are asked to make roundness measurements at three locations. Participants are expected to be familiar with, and have appropriate lab equipment and measurement uncertainties for calibration of similar devices.

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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