1. The Proficiency Testing Matrix
A2LA Annual Conclave - Plenary Session
March 12, 2005, Columbia, MD
By Trace McInturff, A2LA Operations Manager
Accreditation at A2LA

2. Proficiency Testing Requirements
Just a reminder - If you still don’t like it:
Call Warren Merkel
American Association for Laboratory Accreditation
Accreditation at A2LA

3. Proficiency Testing Requirements
2 activities/yr every year rotated to cover entire scope in 4 years
Documented PT plan
Results to be submitted quarterly
American Association for Laboratory Accreditation
Accreditation at A2LA

4. PT Matrix Similar concept of the 17025 Test Method Matrix
Means for assessor(s) to provide consistent reporting of all PT results reviewed during assessment
Should include all past scheduled PT activities that have not been reviewed by the applicable LSO
American Association for Laboratory Accreditation
Accreditation at A2LA

5. PT Matrix - Sub discipline
List as outlined in the A2LA PT Requirements document
ex. Tensile - metal, Tensile - Plastic, Hardness, Corrosion
If not listed in Requirements, list what you reviewed - ex. ESD, Radiated Emissions (< 1GHz)
American Association for Laboratory Accreditation
Accreditation at A2LA

6. PT Matrix - Program List program the lab participated in
ex. ASTM, CTS, Quamatec, Interlaboratory Comparison, Round Robin, etc.
American Association for Laboratory Accreditation
Accreditation at A2LA

7. PT Matrix - Date Tested
Record when actual participation occurred - NOT report date.
American Association for Laboratory Accreditation
Accreditation at A2LA

8. PT Matrix - Outlier & Details
If lab received an outlier, detail the extent of the outlier
ex. Inconsistent data, Data for sample 123 are high, etc.
Comments - any other pertinent information
ex. CAR implemented, Results Pending, etc.
American Association for Laboratory Accreditation
Accreditation at A2LA

9. PT Matrix - OK
If all elements of the PT results are acceptable and/or non-conformance resolved, please date the ‘OK’ box
Otherwise - Lab Services will request corrective action/further info
American Association for Laboratory Accreditation
Accreditation at A2LA

10. PT Matrix - Other Note placed on Matrix:
NOTE: Lab has completed two PT activities in the past year and has a plan to complete all required PT activities during the four year window.
American Association for Laboratory Accreditation
Accreditation at A2LA

11. Contact Information
Trace McInturff A2LA 5301 Buckeystown Pike Suite 350 Frederick, MD, USA
Direct line:
Main:
Fax:
American Association for Laboratory Accreditation
Accreditation at A2LA