Biopharm Buffer Calibration Kit (3) 250 ml (8oz) Bottles pH 4.00, pH 6.86 and pH 9.18 NIST Traceable Reference Standards for All pH Meters by Biopharm at Paragon pbc. MPN: BB8895X. Hurry! Limited time offer. Offer valid only while supplies last. These buffer calibration solutions are suitable for the calibration of all pH meters. Each production lot is manufactured in our USA laboratory following carefully controlled written procedures and standardized against NIST standard reference materials (SRM) for highest accuracy. The finished product is assigned a unique Lot number and expiration date. These products will have greater than one year shelf life when received.Labeled for both 20 C and 25 C temperature values. Individually Bagged
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