GroLine pH 7.01 Calibration Buffer (230 mL) wine pH meter kit successfully passed EPA Microbiological Purifier

successfully passed EPA Microbiological Purifier Test

dry place away from direct sunlight

washing machines

Always calibrate after cleaning the probe or when readings seem inaccurate

Multiple measurement units (ppm

GroLine pH 7.01 Calibration Buffer (230 mL) wine pH meter kit successfully passed EPA Microbiological PurifierHI7007 023 is a high quality pH 7. 01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper proof seal to ensure the quality of the solution. Hanna's line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened