
Buffer Testing Calibration Solutions
1. pH 4.01 or pH 7.01 or pH 10.01 buffer Solution (500ml each).
2. ORP 240 mV or ORP testing Solution 470mV (500ml each).
3. 1413 µS/cm or 12880 µS/cm or 1382 ppm TD Ssolution (500ml).
4. 84 µS/cm or 111800 µS/cm conductivity solution (500 ml each).
5. Zero oxygen solution (500 ml).
6. General cleaning solution or Storage solution for pH electrodes (500ml).