Chemistry, asked by aropraveen02, 7 months ago

Hardness of water 1 Fr = ? Ppm

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Answered by Anonymous

Answer:

What are the health effects of Hardness? ... The following classifications are used to measure hardness in water: soft 0 - 17.1 parts per million (ppm); slightly hard 17.1 – 60 ppm; moderately hard 60 - 120 ppm; hard 120 - 180 ppm; and very hard 180 or more ppm.

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