Hanna storage solutions are prepared with high-grade Potassium Chloride and Potassium Hydrogen Phthalate by titration with NIST 2201 standardized Silver Nitrate and NIST 84j standardized Sodium Hydroxide Solution, respectively.
To minimize clogging and ensure fast response time, always keep the glass bulb and the junction of your pH electrode moist.
Store the electrode with a few drops of HI 70300 storage or pH 7 buffer solution in the protective cap.
Item Number: 131923
Manufacturer: Hanna Instruments
Manufacturer's Part Number: HI 70300L
Brand: Hanna Instruments