ABL90 FLEX reference manual Appendix – Quality control
I-15
Quality control evaluation
The QC evaluation procedure for analyzers is as follows:
Check if the QC results are marked with a "?" (a "?" can be caused by an error
in the previous calibration or by analyzer malfunctions). In case of "?", follow
the troubleshooting instructions on the screen.
Check the presence of any other markings in the QC result. In case of any
markings, follow the troubleshooting instructions on the screen, and, if
running manual QC, consider the questions below.
No. Question
1.
Did you store the ampoules according to specifications?
2. Did you condition the ampoules according to the specifications?
3. Did you key in the correct ampoule conditioning temperature?
4. Did you shake the ampoule vigorously for 15 seconds before using
it?
5. Did you remember to hold the ampoule between your thumb and
index finger when you shook it? (This is done to avoid heating up
the ampoule contents and thus change its temperature.)
6. Did you analyze control solutions immediately after opening the
ampoule?
(Each QC ampoule must be used immediately after being opened,
for
one measurement on one analyzer only, in order to ensure the
reliability of the measurement).
7. Did you use Radiometer QUALICHECK adapter?
8. If own user-defined limits were entered: Did you enter too narrow
control ranges?
9. If everything is OK – repeat the QC measurement.
Evaluation
procedure
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