26
GB
Calibrate the product using the 9.18 pH buffer
solution: Repeat the full procedure of the
“pH calibration: 6.86 pH” section.
NOTES:
For best measuring results: Calibrate before each
measurement.
If the pH buffer solutions have air bubbles: Remove the
air bubbles prior to pH measurement.
Otherwise, the measured value may not be accurate.
The pH value slightly changes as the temperature of
the pH buffer solution changes:
°C
4.01 pH
6.86 pH
9.18 pH
10
4.00
6.92
9.33
15
4.00
6.90
9.28
20
4.00
6.88
9.23
25
4.00
6.86
9.18
