Consumables for pH and ORP Sensors
Sensors are happiest in fluids, because that's where they belong. This is where they are adjusted, cleaned and stored.
Product description
pH Quality Buffer Solutions
Accuracy ±pH 0.02 (±0.05 at pH 10). The shelf life depends upon frequency of use and the amount of chemical drag-in.
Alkaline buffer solutions can react with CO2 if left open. This will affect their values, therefore close after use. Buffer solutions should be replaced a maximum of three months after opening. The solution contains a biocide to prevent bacteria forming.
| Capacity | Order no. | |
|---|---|---|
| ml | ||
| Buffer pH 4.0 – red | 50 | 506251 |
| Buffer pH 4.0 – red | 250 | 791436 |
| Buffer pH 4.0 – red | 1,000 | 506256 |
| Buffer pH 5.0 – red | 50 | 506252 |
| Buffer pH 7.0 – green | 50 | 506253 |
| Buffer pH 7.0 – green | 250 | 791437 |
| Buffer pH 7.0 – green | 1,000 | 506258 |
| Buffer pH 9.0 – colourless | 50 | 506254 |
| Buffer pH 9.0 – colourless | 1,000 | 506259 |
| Buffer pH 10.0 – blue | 50 | 506255 |
| Buffer pH 10.0 – blue | 250 | 791438 |
| Buffer pH 10.0 – blue | 1,000 | 506260 |
ORP Quality Buffer Solutions
Accuracy to ±5 mV. Shelf life depends upon frequency of use and the strength of the chemicals in sample solutions.
Buffer solutions should be replaced a maximum of three months after opening.
Warning: The 465 mV ORP buffer solution is an irritant!
| Capacity | Order no. | |
|---|---|---|
| ml | ||
| ORP buffer 465 mV | 50 | 506240 |
| ORP buffer 465 mV | 250 | 791439 |
| ORP buffer 465 mV | 1,000 | 506241 |
| ORP buffer 220 mV | 50 | 506244 |
| ORP buffer 220 mV | 1,000 | 506245 |
3 Molar KCl Solutions
3-molar KCl solution is most suited for the storage of pH and ORP sensors (e.g. in sensor quills) and as an electrolyte for refillable sensors (e.g. PHEN, RHEN). We only recommend using the KCl solution saturated with AgCl for the old design of refillable sensors with reference electrodes without a large AgCl reservoir.
| Capacity | Order no. | |
|---|---|---|
| ml | ||
| KCl solution, 3 molar | 50 | 505533 |
| KCl solution, 3 molar | 250 | 791440 |
| KCl solution, 3 molar | 1,000 | 791441 |
| KCl solution, 3 molar, AgCl saturated | 250 | 791442 |
| KCl solution, 3 molar, AgCl saturated | 1,000 | 505534 |
Cleaning Solutions
Cleaning solution pepsin/hydrochloric acid: for cleaning pH sensors, the membranes of which have been contaminated with protein.
| Capacity | Order no. |
|---|---|
| 250 ml | 791443 |
Overview
The best solution for sensors
All sensors require consumables such as buffer and cleaning solutions to keep them functioning reliably.
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