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In water testing hardness is often measured in parts per million (ppm), where one part per million is defined as one milligram of
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130:(Mg) per volume of water. Specifically, 1 dGH is defined as 10 milligrams (mg) of
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per litre of elemental calcium and/or magnesium ions.
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134:(CaO) per litre of water. Since CaO has a
91:Learn how and when to remove this message
157:which has a molar mass of 100.09 g/mol.
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237:(in German, English, and French).
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233:[Hardness of water].
330:. You can help Knowledge by
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205:Frank, Larry (1997-12-16).
104:Degrees of general hardness
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46:This article includes a
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229:KrĂĽger, Bernd (2022).
16:Unit of water hardness
377:Units of measurement
28:DGH (disambiguation)
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183:Carbonate hardness
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243:. Retrieved
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81:August 2024
73:introducing
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235:Cactus2000
221:2011-11-04
199:References
188:Hard water
136:molar mass
108:dGH or °GH
267:chemistry
128:magnesium
126:(Ca) and
239:Archived
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211:The Krib
161:See also
120:divalent
124:calcium
110:) is a
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149:(CaCO
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