Growth Technology pH BUFFER 4 - calibration solution for pH onstruments, 300 ml

pH meters should be calibrated regularly . Follow the instructions provided with the meter.

For 2-point calibration, use pH Buffer 4 and pH Buffer 7 unless the instructions state otherwise.
Store the probe in Growth Technology pH Probe Storage Solution .

Storage conditions:

1. Store in a cool place!
2. Keep away from children!