8oz pH Calibration Buffer Solution Kit for pH 4.00 & 7.00 + 4oz 3M KCL Storage Solution pH/ORP Electrode AI1113 1

Description

Apera Instruments AI113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. each The Apera pH calibration buffer is ISO 17025:2017 certified in an ISO 9001:2015 facility and is manufactured in a temperature controlled environment using high purity reagents, deionized water and a certified analytical balance. Reported values are accurate to +/- 0.01 pH at 25°C and can be tracked to NIST Standard Reference Material (SRM). MSDS document can be downloaded. COA is available upon request. All pH buffers have a 2 year expiration date from the manufacturing of unopened bottles