What is the unit to measure the hardness of water?
Asked by garima choudhary
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1 Answer
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Water hardness is often not expressed as a molar concentration, but rather in various units, such as degrees of general hardness (dGH), German degrees (dH), parts per million (ppm, mg/L, or American degrees), grains per gallon (gpg), English degrees (e, e, or Clark), or French degrees (fH, f or F; lowercase f is used to prevent confusion with degrees Fahrenheit).
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