HI70300L is a storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes. It is necessary to store a pH electrode in a solution in order to keep the glass membrane of the pH electrode hydrated. Ideally a storage solution should be used; never store an electrode in distilled or deionized water.
The Hanna Instruments storage solution is specifically formulated to minimize microbial growth and to prevent any effects of diffusion/osmotic from storing a probe in a solution with the highly concentrated inner reference electrolyte. Storing your pH and/or ORP electrodes in a storage solution will also keep the junction clear. Maintaining the hydrated layer and clear junction will help to ensure a fast and reliable measurement.
In the case of cleaning your pH electrode in one of our cleaning solutions, we recommend soaking the electrode in the HI70300L storage solution for at least one hour before taking measurements.
- Special formulation to minimize microbial growth and osmotic/diffusion effects between the solution and inner reference electrolyte
- Manufactured specifically for pH and ORP electrodes
- Clearly marked expiration date and lot number
HI70300L is a solution that can be used to store your pH electrode*. To ensure an optimum response time, the glass sensor tip and the reference junction of the pH electrode should be kept moist and not be allowed to dry out when not in use. Placing the electrode in a small glass filled with storage solution or replacing the solution in the protective cap is a suitable way to store the electrode. The HI70300L should also be used to rehydrate the electrode after a cleaning procedure by soaking for at least one hour before taking measurements.

* Never store pH or ORP electrodes in distilled or deionized water. Doing so will shorten the life of the sensor.
Air tight bottle with tamper-proof seal
- Ensures quality and freshness of solution
Each bottle marked with lot number and expiration date.
- Hanna storage solutions are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle.
HI3844 CTK Hydrogen Peroxide
น้ำยามาตรฐานสอบเทียบ
HI93501N FOODCARE Thermistor-Thermometer
เครื่องวัดปริมาณคลอรีนอิสระ รุ่น HI701
เครื่องวัดปริมาณฟอสเฟต ช่วงต่ำ รุ่น HI713
HI904D Karl Fischer Coulometric Titrator with Diaphragm Generator - 1ppm to 5%
HI711 Checker HC ® - Total Chlorine
HI727 Checker HC ® - Color of Water
HI3810 CTK Dissolved Oxygen
เครื่องวัดสีในน้ำตัวอย่าง HI727
HI713 Checker HC ® - Phosphate, LR
HI38040 CTK Iron Medium Range
เครื่องวัดปริมาณแอมโมเนีย ในน้ำ รุ่น HI715
HI38000 CTK Sulfate
เครื่องวัดปริมาณฟอสฟอรัส ช่วงสูง รุ่น HI706 



