The Phosphate Ultra Low Range Checker® HC Calibration Check Set – HI774-11 provides a simple solution to validating the Phosphate Ultra Low Range Checker® HC – HI774 that has a range of 0.00 to 0.90 ppm as phosphate. 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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