Shandong China Coal Industry & Mining Group Co.,Ltd
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This meter adopts electrode method to test water hardness, which be proved that it has the same accuracy as the EDTA volumetric method after doing a great deal experiments, meanwhile it can avoid many shortness points of EDTA method, such as complicated operation and judgmental difficulties etc.
The meter is the perfect products with advanced electronic, sensor and software design technology. It used in the measurement of high accuracy water hardness value and it is more suitable for measurement in field and scene.
mmoL/L | mg/L (CaCO3) | mg/L (CaO) | mmol/L (Boiler) | mg/L (Ca) | ºfH (France Degree) | ºdH (German Degree) | ºeH (England Degree) | |
mmoL/L | 1 | 100 | 56.1 | 2 | 40.1 | 10 | 5.6 | 7.0 |
mg/L(CaCO3) | 1.00×10-2 | 1 | 0.56 | 2.00×10-2 | 4.01×10-1 | 0.10 | 5.60×10-2 | 7.00×10-2 |
mg/L (CaO) | 1.78×10-2 | 1.78 | 1 | 3.57×10-2 | 7.15×10-1 | 1.78×10-1 | 9.98×10-2 | 1.25×10-1 |
mmol/L (Boiler) | 5.00×10-1 | 50 | 28.05 | 1 | 20.05 | 5.00 | 2.8 | 3.50 |
mg/L (Ca) | 2.49×10-2 | 2.49 | 1.40 | 4.99×10-2 | 1 | 2.49×10-1 | 1.40×10-1 | 1.75×10-1 |
ºfH (France Degree) | 1.00×10-1 | 10 | 5.61 | 2.00×10-1 | 4.01 | 1 | 5.59×10-1 | 6.99×10-1 |
ºdH (German Degree) | 1.79×10-1 | 17.9 | 10.02 | 3.57×10-1 | 7.16 | 1.79 | 1 | 1.25 |
ºeH (England Degree) | 1.43×10-1 | 14.3 | 8.01 | 2.86×10-1 | 5.73 | 1.43 | 8.00×10-1 | 1 |