Hardness Water Test Kit (AQ-01058) Perform 70 Tests

Product details (archived)

The information below is retained for reference only. This item is discontinued and cannot be ordered.

2 test kits in 1 package. General Hardness (GH) and Carbonate Hardness (KH)

General hardness is the measure of calcium (Ca++) and magnesium (Mg++) ion concentrations dissolved in water. These minerals are present in municipal, well and bottled spring water. The level of general hardness in tap and bottled water depends on the source of the water and the treatment processes it has undergone.

Hard water (>200 ppm) is high in calcium and magnesium, while soft water (50 to 100 ppm) is low in these minerals. Our GH (General Hardness) Test measures GH in German degrees (°dGH). To convert °dGH to parts per million (ppm), multiply °dGH x 17.9. Note: ppm and milligrams per liter (mg/L) are equivalent.

Carbonate hardness (also known as alkalinity) is the measure of carbonate (CO32-) and bicarbonate (HCO3-) ion concentrations dissolved in water. These minerals are present in municipal, well, and bottled spring water. The level of carbonate hardness in tap and bottled water depends on the source of the water and the treatment processes it has undergone. Carbonate hardness helps stabilize pH in the water.

Water with a low KH level (50 ppm or less) will tend to be acidic. Water with very low KH are subject to rapid pH shifts, if not monitored carefully. Water with a high KH level (>200 ppm) usually has a high pH. Our KH (Carbonate Hardness) Test measures KH in German degrees (°dKH). To convert °dKH to parts per million (ppm), multiply °dKH x 17.9. Note: ppm and milligrams per liter (mg/L) are equivalent.

Kit includes:

• 2 Dropper bottles for accurate dispensing of test solutions
• Non-staining glass (flat bottom) test tube
• Snap tight test tube cap
• Easy to follow instructions
• Color chart to interpret results