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This document provides standards for measuring the acidity of water and wastewater. It outlines two methods - an indicator method using phenolphthalein and methyl orange indicators, and a potentiometric method using a pH meter. The acidity is measured as the volume of sodium hydroxide solution needed to titrate a sample to pH 3.7 and pH 8.3. The acidity is then calculated in mg/L as calcium carbonate based on the normality of the sodium hydroxide and volume of sample. Measuring acidity provides information
- Author
- Sunny Rohilla
- Language
- EN