pH Calibration Solution - 500ml PH 4
pH Calibration Solution - 500ml PH 4

Premium quality pH solutions from Hanna Instruments for calibrating your pH meter. 

Hanna’s line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened bottle.

 pH levels: pH 4.01

Reported values are accurate to +/- 0.01 pH at 25°C.

From: Hanna Instruments
Size: 500ml