A five-bottle pack to calibrate, clean and store your pH electrode
The Environmental Express pH Solutions Pack puts everything you need to look after a pH electrode in one order: pH 4.01, 7.00 and 10.01 calibration buffers, an electrode cleaning solution and an electrode storage solution. Each bottle holds 500 mL.
Environmental Express states the pack costs over 25% less than buying the same solutions separately.
Key features
- Complete kit: Three buffers, a cleaning solution and a storage solution, so you can calibrate, clean and store from one pack.
- Colour-coded buffers: pH 4.01 is red, pH 7.00 is yellow and pH 10.01 is blue, for quick identification in a busy lab.
- Calibration help on the label: Each buffer bottle has a pH/temperature table printed on it for accurate calibrations.
- Quality and traceability: Environmental Express states the buffers are manufactured under ISO 9000 quality guidelines and are traceable to NIST standards.
- Electrode care: The cleaning solution is Oakton® Electrode Cleaner, which is safe for pH and ORP probes and works on junction-clogging proteins and oils. The storage solution helps keep probes hydrated and restores hydration after cleaning or dry storage.
Ideal for
- Labs that calibrate pH meters on a regular schedule and want one item to reorder
- Routine maintenance of pH and ORP electrodes to help extend their life
What's included
- 1 x 500 mL pH 4.01 buffer (red)
- 1 x 500 mL pH 7.00 buffer (yellow)
- 1 x 500 mL pH 10.01 buffer (blue)
- 1 x 500 mL cleaning solution for grease, oil and protein removal
- 1 x 500 mL storage solution for storing your electrode when not in use
Pack contents
| Bottle | Purpose | Size | Colour code |
|---|---|---|---|
| pH 4.01 buffer | Calibration | 500 mL | Red |
| pH 7.00 buffer | Calibration | 500 mL | Yellow |
| pH 10.01 buffer | Calibration | 500 mL | Blue |
| Electrode cleaning solution | Removes grease, oil and protein | 500 mL | – |
| Electrode storage solution | Storage between uses | 500 mL | – |
Technical specifications
| Brand | Environmental Express |
|---|---|
| Item number | EE0594215 |
| Product | pH Solutions Pack |
| Buffers | pH 4.01, 7.00 and 10.01 |
| Other solutions | Electrode cleaning solution and electrode storage solution |
| Bottle size | 500 mL each |
| Number of bottles | 5 |
| Label information | pH/temperature tables printed on the buffer labels |
| Quality | Manufactured under ISO 9000 quality guidelines; traceable to NIST standards (per Environmental Express) |
| Shelf life, unopened | 2 years |
| Use after opening | pH 4.01 and 7.00 buffers within 90 days; pH 10.00 buffer within 30 days |
Shelf life and use
Unopened bottles have a shelf life of 2 years. Once opened, use the pH 4.01 and 7.00 buffers within 90 days and the pH 10.01 buffer within 30 days.









