| PINPOINT™ High-Precision pH Calibration Fluids - 4.000 +/- 0.002
- 7.000 +/- 0.002
- 10.000 +/- 0.005
These come in single-use plastic envelope packets, and they are extremely accurate and field portable. Each packet contains enough fluid for a complete calibration (about 30 ml) and is intended to be discarded after use. |
