Complaint (b)(4).Received 1rk 456087p/b1904393 for evaluation.We have no further complaints on the material/batch.We have no further inventory of the material/batch.A review of quality, production, and maintenance documentation shows no deviations.Samples were tested, according to gbo standard testing procedures, with regards to correct assembly, level mark, filling level, draw volume and additive content according to iso 6710 'single use containers for venous blood specimen collection' and clsi gp39-a6 regulations for 'evacuated tubes and additives for blood specimen collection'.Tubes were verified to be correctly assembled and had the correct fill guide line position.Greiner fill mark provides a visual control opportunity for the phlebotomist and for the lab personnel to check for proper volume collection of specimen.Both standards specify the draw volume to be within +/- 10% range of the nominal fill volume.No visual deviation in fill volume, sporadic low or high fill, could be observed in the tested samples.All tubes tested filled within the +/-10% tolerance range.Additive content was found to be within specification in all tested samples.Samples were checked for potassium and sodium content and none could be detected in the tested samples.Some of the samples have been evaluated in a blood draw.Gel barriers formed correctly and good separation was observed in all tested samples when centrifuging using recommended parameters within 2 hours.No critically low potassium values were observed as described by the customer.No deviations could be observed in the samples.
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