H.6 investigation summary: complaint history review: the complaint history record for a period of 12 months has been checked and similar complaints related to this catalog number were recorded.However, no trend was identified.Batch history record (bhr) review: the batch history review did not indicate any discrepancies.All release testing was satisfactory, and no deviations were observed.Sample analysis: the retain samples have been checked and no foreign matter could be detected on the plates no return samples were provided however the shared picture was illustrating the contamination on the plate evaluation results: at this stage of our investigation, we have excluded any systemic failure in our manufacturing process.Please note that this product does not have an sal (sterility assurance level) claim.It is filled aseptically, therefore an occurrence of a contamination event cannot be entirely ruled out.Please note that the valid standard for these products is din en 12322 "in vitro diagnostic medical devices - culture media for microbiology".According to this standard the contamination rate for each product lot must not exceed 4.9 %.Based upon our continuous monitoring, we derive a contamination rate that falls below this specified value.According to our high-quality standard, we only release product batches to the market with an aql (acceptable quality level) = 0,65.Investigation conclusion: based on the above-mentioned evaluation, the complaint can be confirmed.However, as no trend was identified, a corrective and preventive action will not be initiated.Bd regrets the inconvenience you have experienced and will continue to monitor incoming complaint with similar defects.
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