Both conditions in the clean chambers and the surrounding clean rooms are periodically monitored by the same methods as those conducted by the Astromaterials Acquisition and Curation Office at NASA Johnson Space Center. When samples are distributed to researchers worldwide, containers sealed in nitrogen in the clean chambers are used. We do not insist that particular protocols are followed by researchers who receive our asteroid grains scientific study, but do hope sufficient precautions are taken to allow the planned research to be carried out successfully. -- Yada Toru, Astromaterials Science Research Group
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