HI-721-11 CAL CHECK STANDARD FOR IRON CHECKER 0.00 AND 1.00 PPM

The Iron Checker® HC Calibration Check Set – HI-721-11 provides a simple solution to validating the Iron Checker® HC – HI-721 that has a range of 0.00 to 5.00 ppm (mg/L). This high-quality set of standards is supplied with a Certificate of Analysis.