General pH Calibration Bundle, pH 4 & 7, Cleaning Solution, Electrode Storage Solution (Bottles - 500 mL each)

The General Calibration Bundle is great for those who frequently calibrate in a lab or other controlled space. The two calibration points at pH 4.01 and pH 7.01 set it apart for users who only want to calibrate two points and save on solutions they would not use.

These Buffer solutions are produced and standardized according with pH meters and electrodes that are calibrated with NIST standards. A Certificate of Analysis (COA) is available as needed for ultimate traceability. Buffers are formulated to expire 5 years after the date of manufacture for unopened bottles.

Color coded for quick ID, you will always know you have the right solution in hand. Solutions are free from any dyes that may stain the reference cell of a pH electrode.

To minimize junction clogging and ensure a fast response time, it is important to always keep the glass bulb and pH junction hydrated. If a probe is dry, the junction may become clogged causing the pH readings to become erratic. Proper storage of your electrode will ensure reliable measurements and a long electrode life. This storage solution is specially formulated to keep the pH glass hydrated while minimizing organic growth.

When electrodes become dirty from use, it will provide inaccurate results. Our general purpose cleaning solution eliminates impurities and residues that are left on electrode surfaces when immersed in samples during measurement or when stored incorrectly. Includes 4.01 & 7.01 pH Buffer (500 mL/each), Electrode Storage Solution (500 mL), General Purpose Cleaning Solution (500 mL).