GroLine 1413 µS/cm Conductivity Standard with Certificate (230mL Bottle) galvanic dissolved oxygen probe Seychelle pH2O Filters are tested

GroLine 1413 µS/cm Conductivity Standard with Certificate (230mL Bottle) galvanic dissolved oxygen probe Seychelle pH2O Filters are testedHI7031 023 is a GroLine 1,413 S cm conductivity standard that is prepared against a NIST traceable potassium chloride solution and supplied with a certificate of analysis. Hanna conductivity solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper proof seal to ensure the quality of the solution. Hanna's line of conductivity standards have been specially formulated to have an expiration of 5 years

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