| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
To calibrate, use either Essentials Lab Buffer 4 or Essentials Lab Buffer 7. Using both of these buffer solutions will make your calibration more accurate.
When calibrating, it is necessary that your pH meter and your calibration fluid have the same temperature. To achieve this, place them in the same room several hours prior to performing calibration. The temperature of your solution will also affect the pH value.
