Title: Taking measurements with a pH meter

Test 1

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Rinse the elctrode

Rinse the electrode

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Credits: licence CC BY-NC

Rinse the electrode

- Always rinse and blot the electrode dry before using.
- If you do not do this, you might contaminate the solution being measured.

Take reading

- The delicate electrode bulb needs to be completely immersed to obtain an accurate reading.
- Stir the sample gently.
- Wait for the reading to stabilise to within 0.02 pH units before recording the reading.

Replace in storage solution

- Make sure to replace the calibrated electrode in the storage solution.
- If the bulb is allowed to dry out, it will be damaged.