I am a customer of the DMEM has expired. Born a white sludge as the previous attachment, so she could not be sure how to use it? Therefore, before using the filter, so that it can be extracted tako oxide first.
DMEM my client which has not expired. White precipitate figure attached. Which previously was not She is not sure whether it will work or not. Therefore, before using it to filter out sediment before.
DMEM of my clients, which hasn't expired. Born white sediment (as attachment, which previously not, she is not sure whether to work or not. So before use, so the filters remove sediment out first.