805
805 pH
pH
Semi-quantifies H2O pH using the pH meter.
Summary: This method determines the pH of water. It is most applicable to waters with a pH ranging from 4.0 to 9.0. It does not provide information on the disassociated H-ions affecting the sensing electrode. Values are reported to the nearest 0.1 pH unit. The analysis requires approximately 5 mL of sample but 10 mL is requested to allow for quality control samples.
Method 4500-H+ (pH Value) in Standard Methods for the Examination of Water and Wastewater, 20th Edition. Clesceri, L. S., Greenberg, A. E. and Eaton, A. D., eds.; American Public Health Association; Washington D.C., 1998; pp. 4-86 - 4-91.