Hach Iron Color Disc 0.2 -10 mg/L 100 Tests
Hach Iron Test Kit Iron 0-10mg/L 100 Tests Plastic Case. Color wheel test features a continuous-gradient color wheel for fast and accurate comparisons. Simply rotate the color wheel to obtain a color match with the reacted sample. Typical accuracy is +/- 10% and is subject to individual color perception.
Manufacturer: Hach Company
Manufacturer #: 146401