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 for NELAP is available below.
TNI PT Provider Code |
PT Provider |
Contact |
City, State |
Phone |
| TNIPTP16 | Hamden, CT |
800 |
||
| TNIPTP19 | Parkersburg, WV |
304 |
||
| TNIPTP21 | Arvada, CO |
303 |
||
| TNIPTP31 | Albany, NY |
518 |
||
| TNIPTP36 | Raleigh, NC |
800 |
||
| TNIPTP46 | Golden, CO |
303 |
||
| TNIPTP41 | Laramie, WY |
307 |
||