T/BHES 1-2022 Active
T/BHES 1-2022 Water quality determination of total hardness and calcium magnesium using automatic potentiometric titration method
Abstract
This document specifies the method for determining the total hardness, calcium, and magnesium in water by automatic potentiometric titration. This document is applicable to the determination of total hardness, calcium, and magnesium in surface water, groundwater, drinking water, and wastewater. The detection limits and measurement ranges of the two-step titration method and the continuous titration method are the same. When the sampling volume is 50 mL, the detection limit of total hardness is 2.5 mg/L, and the measurement range is 10.0 mg/L to 360 mg/L; the detection limit of calcium is 1.0 mg/L, and the measurement range is 4.0 mg/L to 150 mg/L; the detection limit of magnesium is 0.5 mg/L, and the measurement range is 2.0 mg/L to 90.0 mg/L.
General Product Information
| Document Type | Group standards |
|---|---|
| Standard Status | Active |
| Standard Code | T/BHES 1-2022 |
| CCS | Analysis methods for toxic substances in water environments |
| ICS | \nChemical testing of water |
| Implement Date | 2023-04-01 |