PASCO EZ-2340 Alkalinity ezSample Field Titrator - Manual (Page 2)

2
012-10116
Test Method Description
The alkalinity ezSample test method employs an acid titrant and a mixed pH indicator.
1–3
Results are
expressed as calcium carbonate (CaCO
3
).
NOTE: Because the ampoules have nonlinear scales, the accuracy of the ezSample field titrator kit varies with the
analyte concentration. At the low end of the test range, the accuracy is
± 5%. At the high end of the range, the
accuracy falls to
± 20%.
References
1. Acidity or Alkalinity of Water. ASTM D. 1067-92 (1996).
2. Method 2320 B. APHA Standard Methods, 20th ed., p. 2-27, (1998).
3. Method 310.1. EPA Methods for Chemical Analysis of Water and Wastes. (1983).