
The Hanna Instruments HI-3812 Hardness Test Kit provides a simple and reliable way to measure total water hardness expressed as calcium carbonate (CaCO₃). Designed for field and laboratory use, the kit offers two measurement ranges, making it suitable for testing both low and moderate hardness levels in a variety of water sources.
Using a straightforward titration method, the kit helps users monitor water quality, assess treatment effectiveness and identify hardness issues that can affect equipment, processes and analytical results. Its portable format makes it ideal for routine testing in environmental, industrial, educational and water treatment applications.
Benefits
Applications

The Hanna Instruments HI-3812 Hardness Test Kit provides a simple and reliable way to measure total water hardness expressed as calcium carbonate (CaCO₃). Designed for field and laboratory use, the kit offers two measurement ranges, making it suitable for testing both low and moderate hardness levels in a variety of water sources.
Using a straightforward titration method, the kit helps users monitor water quality, assess treatment effectiveness and identify hardness issues that can affect equipment, processes and analytical results. Its portable format makes it ideal for routine testing in environmental, industrial, educational and water treatment applications.
Benefits
Applications