PH buffer solutions for calibration
Buffer solutions PH 4, PH 7 and PH 9 are intended for calibration and maintenance of pH sensors (electrodes).
Color differences of calibration solutions:
- Calibration (buffer) solution pH 4: pale red (pink) solution;
- Calibration (buffer) solution pH 7: pale green solution;
- Calibration (buffer) solution pH 9: pale blue solution;
Delivery: 55 ml plastic bottle.
We recommend that you calibrate the pH electrode - once a month.
| Name | vendor code |
| Calibration solution pH 4, 55 ml | ASZ0000101 |
| Calibration solutionpH 7, 55 ml | ASZ0000201 |
| Calibration solutionpH 9, 55 ml | ASZ0000301 |
It is necessary to store calibration solutions in a dark place, at a temperature not exceeding 25 ° С, away from direct sunlight to prevent photochemical reactions. In addition, buffer calibration solutions must be protected from the ingress of carbon dioxide from the air and stored in a tightly closed, sealed container. Each plastic bottle is labeled with the expiration date for that calibration solution.
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