Table 1 Precision results of SARS-CoV-2 NTAb obtained using a 5 × 5 design (quintuplicate measurement for 5 consecutive days) expressed as coefficient of variation (CV, %)
Measurand | Level, AU/mL | Design | Measured repeatability—CV, % | Intermediate precision—CV, % | ||
|---|---|---|---|---|---|---|
Laboratory evaluation | Manufacturer’s claims | Laboratory evaluation | Manufacturer’s claims | |||
NTAb | 10.09 | 5 × 5 | 2.58 | ≤ 6.00 | 3.62 | ≤ 10.00 |
24.62 | 1.26 | ≤ 6.00 | 1.95 | ≤ 10.00 | ||
50.47 | 0.81 | ≤ 6.00 | 1.58 | ≤ 10.00 | ||