Modeling of recovery efficiency of sampling devices used in planetary protection bioburden estimation.

ABSTRACT:

Importance

Planetary protection at the National Aeronautics and Space Administration (NASA) requires bioburden on certain spacecraft to be estimated via sampling in order to comply with biological cleanliness requirements. To achieve this, the recovery efficiency of devices used to sample the spacecraft pre-launch must be understood and their uncertainty quantified in order to produce the most reasonable estimates of bioburden. This study brings together experiments performed by NASA and the European Space Agency with approved swab and wipe sampling devices, inoculating steel coupons with laboratory strains of Bacillus spp. spores commonly recovered from spacecraft assembly clean rooms (B. atrophaeus, B. megaterium, B. safensis and B. thuringiensis

SUBMITTER: DiNicola M 

PROVIDER: S-EPMC10734503 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature