4500-O A. Introduction References
4500-O B. Iodometric Methods References
4500-O D. Permanganate Modification Bibliography
4500-O G. Membrane-Electrode Method References
4500-O H. Optical-Probe Method References
This version is an update to the 24th edition of Standard Methods for the Examination of Water and Wastewater and was posted online April 18, 2025.
DOI: 10.2105/SMWW.2882.091