This glossary is far from complete. We are constantly adding terms.
- Calcium and magnesium compounds can precipate out of water to form deposits in sinks, pipes, etc. This can be of importance for boilers, water supply systems, and home pipes.
- Calcium and magnesium ions bind with soap and detergent reducing their effectiveness.
- Typical values - ∼0 to >500 mg/L
- There is no international standard on hardness. Hard water is general considered to be over ∼100 mg/L (different organizations used slightly different definitions).