HI70300M is a storage solution made with reagent-grade chemicals, suitable for the optimal performance of pH and ORP electrodes.

Storing a pH electrode in a solution is necessary to maintain the moisture of its glass membrane. Ideally, a storage solution should be used, avoiding storage in distilled or deionized water.

The storage solution from Hanna Instruments is specially designed to minimize microbial growth and prevent diffusion or osmosis effects from storing probes in a solution with a highly concentrated internal reference electrolyte.

Storing pH and/or ORP electrodes in a storage solution also keeps the junction clean, contributing to quick and reliable measurements.