Zone Name | ATP assay | NASA standard spore assay | |||||
---|---|---|---|---|---|---|---|
# of samples tested using swabs | Percent clean samples (<2.33 × 10−11 mmol ATP) | Percent dirty samples (≥2.33 × 10−11 mmol ATP) | # of samples tested using: | Percent clean samples (<1 spore) | Percent dirty samples (≥1 spore) | ||
Swabs | Wipes | ||||||
Backshell | 21 (4)a | 81.0 | 19.0 | 9 (1) | 11 (7) | 60.0 | 40.0 |
Descent stage | 100 (9) | 91.0 | 9.0 | 109 (1) | 32 (4) | 96.5 | 3.5 |
Heatshield | 21 (7) | 66.7 | 33.3 | – | 6 (6) | – | 100.0 |
Rover | 107 (15) | 86.0 | 14.0 | 87 (1) | 18 (2) | 978.1 | 2.8 |