Natural Water Standard Solution is required to calibrate conductivity instruments for laboratory and field analysis.
Natural Water Standard Solution is required to control the measurement accuracy of conductivity apparatus. The concentration value of the solution is 3960 µS/cm ± 39.6 µS/cm at the temperature of 25°C. Each bottle has a capacity of 50 mL. Natural Water Standard Solution is NIST traceable for simple and reliable conductivity cell calibration.
Storage conditions
The solution is required to be stored at the following temperature: 10 °C - 25 °C (protected from direct sunlight). The maximum shelf life after opening: 3 months.
| Brand | Hach |
| Parameter | TDS |
| Formula | Na₂SO₄, Na₂CO₃, NaCl |
| Concentration (2) | 3960 µS/cm ± 39.6 µS/cm |
| Concentration | 3000 ppm ± 30 ppm |
| NIST traceable | Yes |
| Quantity | 50ml |
| Storage conditions | 10 °C - 25 °C (protected from light) |
