Biopharm pH Buffer Calibration Solution Kit 2-Pack | 16oz (500 ml) Bottles | pH 4.00 and pH 7.00 | NIST Traceable Reference Standards for All pH Meters | Color Coded
- Individually Bagged 500 ml (16 oz) Poly Bottles.
- Free Certificate of Analysis and Traceability.
- For Pharmaceutical, Academic, Research and Industrial Uses.