Calibration Solutions
$105
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Brand | Hanna |
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Model# | HI749 |
Weight | 64 g (2.25 oz.) |
Dimensions | 81.5mm x 61mm x 37.5mm (3.2 x 2.4 x 1.5) |
Environment | 0 to 50C (32 to 122F)| RH max 95% non-condensing |
Battery Type/Life | (1) 1.5V AAA |
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. |
Automatic Shut-Off | after ten minutes of non-use |
Photometer/Colorimeter Light Source | LED @ 525 nm |
Photometer/Colorimeter Light Detector | Silicon Photocell |
Chromium Hexavalent Range | 0 to 300 ppb |
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. |
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.
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