Standard Methods for the Examination of Water and Wastewater

The analytical methods included in this part make use of classical wet chemical techniques
and their automated variations and such modern instrumental techniques as ion chromatography.
Methods that measure various forms of chlorine, nitrogen, and phosphorus are presented. The
procedures are intended for use in the assessment and control of receiving water quality, the
treatment and supply of potable water, and the measurement of operation and process efficiency
in wastewater treatment. The methods also are appropriate and applicable in evaluation of
environmental water-quality concerns. The introduction to each procedure contains reference to
special field sampling conditions, appropriate sample containers, proper procedures for sampling
and storage, and the applicability of the method.