
Frequently asked questions
Which VitaLink pH Buffer should I buy, 4 or 7?
You can calibrate with either Buffer 4 or Buffer 7, but using both buffer solutions will make your calibration more accurate. Both come in 250ml bottles.
Why do I need to calibrate my pH meter?
pH electrodes age as their coating degrades with use, so their performance changes over time. If you use your pH meter daily, calibrate at least once a week.
Does temperature matter when calibrating with VitaLink pH Buffer?
Yes. Your pH meter and buffer should be the same temperature, so place them in the same room several hours before calibrating.
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