HI721-11 is a high-quality set of calibration standards that allows users to validate the Iron Checker^® HC - HI721. The HI721-11 includes one sealed cuvette for zero ppm iron and one cuvette that is tinted to an equivalent 1.00 +/- 0.06 ppm iron sample @ 25^°C. The calibration check set is produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature controlled environment.

The HI721-11 is supplied with Certificate of Analysis

• Product code

• Lot number

• Expiration date