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Oct 13, 2026

FAQ on pH Measurement - Answers to the Common Questions

pH measurement is an essential component of numerous applications - from laboratory analysis to industrial production. But what challenges arise during the installation, calibration, and maintenance of pH meters? Answers to the most frequently asked questions.

Frequently Asked Questions about pH measurement: your comprehensive guide

1. Applications: Which Electrode Is the Right One?

  • Is pH measurement possible in cold brine?

  • Which pH electrode is suitable for which application?

2. Service Life: How Long Does a pH Electrode Last?

  • What factors influence the electrode’s service life?

3. pH Electrode Maintenance: What Should You Keep in Mind?

  • What should you do if the KCl solution has crystallized?

  • How can a dried-out electrode be reactivated?

  • What is the best way to store the electrode to maintain its performance?

  • What methods are available for cleaning the electrode?

4. Performing pH Measurements: What Affects Measurement Accuracy?

  • Should the solution be stirred during the measurement or not?

  • Why must the electrode’s refill port be open?

  • Which buffer solutions are best for calibration?

  • What happens if calibration and measurement are performed at different temperatures?

5. pH Meters: Compatibility and Application

  • Are SI Analytics electrodes compatible with all pH meters?

6. General Questions About pH Measurement

  • How long can opened buffer solutions be used?

  • Are there differences between DIN and technical buffer solutions?

  • When should a pH electrode be replaced?

  • Why can’t a single-electrode measuring chain be stored in distilled water?

Would you like detailed answers to these and other questions? Then read our complete FAQ blog post now!