> which I assume means sterile and unlikely to flake any material off.
Yes, as well as being nonreactive, not able to outgas much, etc. They're going to do minute chemical analysis on the samples, so avoiding chemical contamination is essential.
Yes, as well as being nonreactive, not able to outgas much, etc. They're going to do minute chemical analysis on the samples, so avoiding chemical contamination is essential.
That way we could cross-check for tool/storage-based contamination or accidental reactions.