ANATEL A643, Operator'S Manual, Page: 88 / 222

88 of 220 Calibration and Validation - Anatel A643a
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CAUTION:
Some instrument surfaces may be hot if the sample water is hot. Allow surfaces to cool before
touching.
7) After specifying a given ppb concentration level, press Enter to highlight the
concentration value. Using the Up and Down Keys , enter the actual TOC value for the
given standard concentration as it appears on the Certificate of Analysis and press
Enter to select the final value. Repeat this procedure for all validation standard levels
selected.
8) Also highlight the # of reps and specify the number of replicates to be performed at
each level. Press Up and Down Keys to toggle through the available selections (1–3).
Typically, the more replicates, the more accurate the validation results.
9) Press Enter . The analyzer will asked if the “C of A” values have been entered. If not,
press Esc to enter the “C of A” values: once they are properly entered, press Enter to
continue. Press Eagain to toggle through the available replicate selections (1–3). With
the standard and number of replicates displayed, press
Enter .
10) If any changes must be made to the standard concentrations or the number of
replicates, press
Esc followed by Enter to abort the procedure. Immediately press
Enter at the Validate Menu to re-enter the Standard Selection Menu and continue
with TOC validation.
11) Remove the empty sample vessel and insert the blank vial at the prompt. Press Enter
and its contents are sampled and analyzed. The results of each of the analysis
replicates are reported.
CAUTION:
Use extreme care when installing and removing the sample vessel and vials. Contact with the
exposed needle could cause serious injury.
Fig 6-10 : Validation Standard Criteria