PBS（磷酸盐缓冲液）, 1X, 含钙镁离子，311-011

Product Description:
To ensure that our validated systems and controls continue to be effective, we confirm the quality of our Balanced Salt Solution by testing samples from each production batch. We measure the osmolality and pH of all batches to verify compliance with product specifications, and we also confirm the absence of bacterial and fungal contamination using the method referenced in the current edition of the U.S. Pharmacopoeia (USP) Sterility Test Monograph. The endotoxin levels are determined using a Limulus Amoebocyte Lysate (LAL) assay.