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PT Providers

A provider of PT samples must be accredited by a Proficiency Testing Provider Accreditor (PTPA) that meets the TNI requirements. A listing of organizations that are accredited to provide PT samples is available below.

 

TNI PT Provider Code

PT Provider

Contact

City, State

Phone


TNIPTP16

Absolute Standards, Inc.

Stephen Arpie

Hamden, CT

800-368-1131


TNIPTP19

Advanced Analytical Solutions, LLC

Frederick Anderson

Parkersburg, WV

304-422-4274


TNIPTP21

ERA

Craig Huff

Golden, CO

303-431-8454


TNIPTP31

NYS DOH Wadsworth Center

Patrick Parsons

Albany, NY

518-474-7161


TNIPTP36

NSI Solutions, Inc.

Kenneth Grybowski

Raleigh, NC

800-234-7837


TNIPTP46

Phenova

PT Service

Golden, CO

303-940-0033