| Features | |
| Certificate | Yes |
| Composition | Sodium borate (CAS 1303-96-4), blue dye |
| Pack | 250 ml with integrated calibration compartment |
| Nominal value | pH 9.21 @ 25 °C |
| Volume | 250 ml |
| Accuracy | ± 0.02 |
| Colour | Blue |
| Appearance | Clear blue liquid |
| Dangers | Non-hazardous. No ADR restrictions |