The science, method, or practice of measuring chlorine or chloride concentrations in substances, especially in water analysis and quality control.
From chlorine + the suffix -metry (from Greek metron, 'measure'), creating a noun form similar to 'spectrophotometry' or 'gravimetry' to describe the measurement discipline itself.
Chlorimetry became crucial during the 19th-century cholera epidemics—accurately measuring chlorine's disinfecting power was the key to understanding how to make water safe for cities.
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