Last Updated
：2025/12/02
total hardness
Noun
Japanese Meaning
無機化学における水中のカルシウムおよびマグネシウムイオン濃度の合計、通常mmol/Lで表されること。 / 水の総硬度
（ plural ）
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(inorganic chemistry) The sum of calcium and magnesium ion concentrations in water, normally expressed in mmol/L
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total hardness
The total hardness of the river water, measured in mmol, increased significantly after the storm.
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The total hardness of the river water, measured in mmol, increased significantly after the storm.
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