3-56 Operation
iii
Note: If extrapolation is chosen for point to point curve fit, unknown
concentrations will be extrapolated linearly from the nearest segment of the curve.
If the plot includes both increasing and decreasing segments, the curve printout
will be labeled “Ambiguous.” The resulting values, which actually are
extrapolated, may not be indicated as such. All calculated results for an
“Ambiguous” curve should be considered unreliable.