PBS(Phosphat Buffered Saline), 10X, without calcium, magnesium,311-012

To ensure that our validated systems and controls remain effective, we verify the quality of our balanced salt solution by testing samples from every production batch. We measure the osmolality and pH of all batches to verify compliance with product specifications, and confirm the absence of bacterial and fungal contamination following the method specified in the current edition of the United States Pharmacopeia (USP) Sterility Test monograph. Endotoxin levels are determined by the Limulus amoebocyte lysate (LAL) assay.