For accurate and reproducible calibration of pH meters and pH electrodes.
- Colour-coded
- NIST™-traceable standard reference materials
- Bottles of 475 ml
| Manufacturer: | Thermo Elect.LED GmbH (Orion) |
| Article description 1: | Buffer solution pH 4.01 |
| Article description 2: | 475 ml, color-pink |
