The HI97751-11 Sulfate CAL Check™ Standards provide a simple solution to calibrating and validating the compatible HI97751 portable photometer. This high quality set of standards is manufactured in our state-of-the-art facility and comes supplied with a certificate of analysis. The certificate of analysis provides the lot number, reference values, and expiration date for traceability when certifying the compatible sulfate photometer.
HI7072 is a 1M KNO3 electrode fill solution for use in double junction and ion selective electrodes. The electrolyte level in refillable electrodes should be checked before performing any measurements. If the level is low, refill with the proper electrolyte solution to ensure optimum performance. This simple maintenance helps guarantee adequate head pressure to promote the flow of reference electrolyte into the sample being measured.
Fill solution for double junction and ion selective electrodes
Convenient 30 mL bottles
Clearly marked bottle with expiration date and lot number