pHs term C (calcium hardness factor)

Calcium hardness contribution to the saturation pH calculation.

$$C={\log }_{10}({\text{Ca hardness as CaCO}}_3)-0.4$$

Variables

Symbol	Meaning	Unit
${\text{Ca hardness as CaCO}}_3$	Calcium hardness expressed as calcium carbonate	mg/L as CaCO3

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Part of The Blueprint of Water