Metrohm NIRS XDS SmartProbe Analyzer - Manual (Page 68)

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When the 99% standard has been scanned,
the result will be plotted as shown.
In this picture, the upper and lower spectra
are tolerances from the initial IPV Setup
spectrum. The IPV Setup spectrum is the dark
spectrum in the middle, displayed in black on
screen.
The lighter spectrum in the middle (red on
screen) is the current spectrum. It should be
within the upper (blue) and lower (green)
spectra as shown.
After each standard is run, Vision plots the
comparison for each wavelength area as
shown. Tolerances are automatically applied,
and a “Pass” or “Fail” indication is given.
Continue to follow the on-screen prompts for
each standard. Vision requests the 40%,
20%, 10%, and 2% standards.
When Vision has completed the test, the
tabulated results may be printed. They are
also stored in the Diagnostic Database for
later recall.
When the test is complete, click “Close
Window”.
A tab on this display also shows results of the USP Photometric Linearity Test, formerly suggested by
USP. Note that this test was dropped by USP as of December 1, 2008. Vision contains the tab for
those users who are required to run it by internal procedures. Metrohm does not suggest or require
the USP test.