The Iron Checker® HC Calibration Check Set - HI721-11 provides a simple solution to validating the Iron Checker® HC - HI721 that has a range of 0.00 to 5.00 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 for traceability when certifying the Checker® HC.
