The HA62 is the correct model number for testing the following water contaminants:
The Hach Hardness, Iron, and pH Test Kit, Model HA-62 is a multi-parameter, easy to use, cost effective kit that helps to determine the quality of your water. Water hardness is caused by the presence of calcium and magnesium deposits in natural water. Hard water is responsible for most scale build-up in your water heater and pipes. Water hardness increases soap consumption in your laundry and can create erosion around your plumbing fixtures.
Hach Water Hardness Test Kit specifications:
The Hach HA62 Test Kit includes color disc and comparator for colorimetric comparison of iron and pH. This water testing kit is affordable and comes in a protective and convenient carrying case. The chemicals in this kit may be hazardous to the health and safety of the user if inappropriately handled. Please make sure that you read all warnings prior to performing the tests and use the appropriate safety equipment.