Many laboratories make pH measurements of "pure water", waters with low levels of acid or base and dissolved salts. Measuring pure water samples can be difficult The low conductivity and limited buffering capacity of pure water causes pH electrodes to drift, producing non-reproducible and inaccurate results. Using the Orion Pure Water pH Test Kit provides fast, accurate pH results in high purity waters. This kit contains special low ionic strength buffers for calibration and an additive, called pHISA® Adjustor, to increase sample ionic strength without changing its pH Recommended for samples such as: well water, rain water, distilled/deionized water, boiler feed water, and process water. For best results, a high quality pH electrode such as the ROSS™ pH electrode 42355-00 is recommended. Complete with four 475mL bottles of pH 6.97 buffer, 4.10 buffer, two 50mL bottles of pHISA adjustor, 1mL syringe, holding tray and instructions.
