Ph Meter Calibration: Can the prepares buffer solution last indefinitely/

[Meena Iyer]

I got this capsule for making buffer solution. We calibrated our Ph Meter using this. Can we keep on re-using this buffer solution for future calibrations?

Meena

[Robert Bruce Thompson]

Ideally, you should make up fresh solution each time you calibrate your
meter. In practical terms, you can use it repeatedly. Store it in a
tightly capped bottle in a cool, dark location.

[j yeardly]

For best results you can store the probe in an Electrode Storage Solution

I use the Hanna one at work and home  USA web address is http://shop.hannainst.com/