The Hanna Chromium VI Low-Range Checker (HI749) tests for the presence of Chromium VI (Hexavalent Chromium) in concentrations within the range of 0 to 300 ppb with an accuracy of ±3 ppb in samples such as drinking water and wastewater. With a digital readout, Hanna Checkers provide greater measurement accuracy when compared with chemical test kits that rely on human perception of color.
- Compact, Portable Design
- Built-in Timer
- One-Button Operation
Chromium, Hexavalent Range | 0 to 300 ppb |
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Chromium, Hexavalent Resolution | 1 ppb |
Chromium, Hexavalent Accuracy | ±3 ppb ±5% of reading |
Chromium, Hexavalent Method | adaptation of the ASTM, Manual of Water and Environmental Technology, D 1687-92, Diphenylcarbohydrazide method. |
Photometer/Colorimeter Light Source | LED @ 525 nm |
Photometer/Colorimeter Light Detector | silicon photocell |
Battery Type/Life | (1) 1.5V AAA |
Automatic Shut-Off | after ten minutes of non-use |
Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing |
Weight | 64 g (2.25 oz.) |
Dimensions | 81.5mm x 61mm x 37.5mm (3.2″ x 2.4″ x 1.5”) |
Ordering Information | HI749 Checker® is supplied with (2) sample cuvettes with caps, chromium VI LR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide. |