The Free Chlorine Checker HC® Calibration Check Set – HI701-11 provides a simple solution to validating the Free Chlorine Checker® HC – HI701 in the range of 0.00 to 2.50 ppm (mg/L). 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 to provide traceability when certifying the Checker® HC.
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