DGH
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Degrees of General Hardness (dGH) is a unit of water hardness, specifically of General Hardness.
General Hardness is a measure for the number of calcium and magnesium cations per volume of water. 1 dGH corresponds to 10 mg of calcium oxide or magnesium oxide per litre of water.
External links
- Some Basic Water Chemistry (http://www.aquarticles.com/articles/management/Hardy_Water_Chemistry.html)Template:Chem-stub