When is resampling of the batch indicated?
A resampling of the batch should be conducted if the investigation shows that the original sample was not representative of the batch. (Note: in some cases, when all data have been examined (e.g., widely varied results obtained from several aliquots of the original composite/after determining there was no performance error made in the analysis), it may be concluded that the original sample was improperly prepared and was therefore not representative of the batch (211.160(b)(3)).
