Chapter A6. Section 6.6. Alkalinity and acid neutralizing capacity
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Documents:
- Report (648 KB pdf)
- Report July 2006 (414 KB pdf) - - Third Edition
- Report September 2001 (692 KB pdf) - - Second Edition (without comments)
- Report September 2001 (3.95 MB pdf) - - Second Edition (with comment updates)
- Report April 1998 (131 KB pdf) - - Original Report
- Related Work: Techniques and Methods 9-AO - General Introduction for the “National Field Manual for the Collection of Water-Quality Data”
- Download citation as: RIS | Dublin Core
Abstract
Alkalinity (determined on a filtered sample) and Acid Neutralizing Capacity (ANC) (determined on a whole-water sample) are measures of the ability of a water sample to neutralize strong acid. Alkalinity and ANC provide information on the suitability of water for uses such as irrigation, determining the efficiency of wastewater processes, determining the presence of contamination by anthropogenic wastes, and maintaining ecosystem health. In addition, alkalinity is used to gain insights on the chemical evolution of an aqueous system. This section of the National Field Manual (NFM) describes the USGS field protocols for alkalinity/ANC determination using either the inflection-point or Gran function plot methods, including calculation of carbonate species, and provides guidance on equipment selection. Newly published and revised chapters will be announced on the USGS Home Page on the World Wide Web under 'New Publications of the U.S. Geological Survey.'
Suggested Citation
Rounds, S.A., 2012, Alkalinity and acid neutralizing capacity (ver. 4.0, September 2012): U.S. Geological Survey Techniques of Water-Resources Investigations, book 9, chap. 6.6, https://doi.org/10.3133/twri09A6.6.
Table of Contents
- 6.6 Alkalinity and Acid Neutralizing Capacity
- 6.6.1 Equipment and Supplies
- 6.6.2 Calibration and Standardization
- 6.6.3 Collection and Processing
- 6.6.4 Measurement
- 6.6.5 Calculations
- 6.6.6 Troubleshooting
- 6.6.7 Reporting
- Selected References
- Acknowledgments
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Chapter A6. Section 6.6. Alkalinity and acid neutralizing capacity |
| Series title | Techniques of Water-Resources Investigations |
| Series number | 09-A6.6 |
| DOI | 10.3133/twri09A6.6 |
| Edition | Version 3, Revised Jul 2006 |
| Year Published | 2012 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | U.S. Geological Survey |
| Description | 53 p. |
| Larger Work Type | Report |
| Larger Work Subtype | USGS Numbered Series |
| Larger Work Title | National Field Manual for the Collection of Water-Quality Data. U.S. Geological Survey Techniques of Water-Resources Investigations, Book 9 |
| Google Analytic Metrics | Metrics page |