The Phosphate Low-Range Checker® HC Calibration Check Set – HI713-11 provides a simple solution to validating the Phosphate Low Range Checker® HC – HI713 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 for traceability when certifying the Checker® HC.
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