| QA Component | Mean Recovery Range (%) | Coefficient of Variation (%) |
| Lab Reagent Blank; negative PT or PE samples | 0 | N/A(1) |
| Lab Fortified Blank; Lab Fortified Sample Matrix | 5-200 | N/A |
| Positive PT and PE samples | 15-175 | ≤130 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.