Toc Validation - Hach ANATEL PAT700 Operator's Manual

PAT700 Total Organic Carbon Analyzer – Bottle Mode
6.7

TOC validation

CAUTION
Potential puncture hazard! Contact with the exposed needle could cause serious
injury. Use extreme care when installing and removing the sample bottles.
The principles and procedures for performing a TOC validation are essentially the same as
those used for performing a calibration. Validation of the TOC calibration is accomplished by
analyzing user-selected concentrations of sucrose validation standards. You can perform a
validation using a single-point analysis or multi-point analysis. The instrument response for
the validation standard must have a deviation of less than 15% of the calibrated response to
be acceptable.
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Anatel
Allow the TOC validation standards to warm to room temperature.
At the home screen, touch the << icon to open the sliding toolbar, then touch the
bottles icon in the toolbar, or touch the bottles icon in the lower left corner of the
screen.
Touch the run standards button in the bottle mode dialog box. See
page 76.
Touch the TOC validation button in the run standards dialog box. See
page 77.
To use default settings, touch the use default settings radio button in the TOC
calibration setup dialog box. To run any other configuration, touch the use custom
settings radio button, then define the desired configuration. (See
page 79.) The following procedure relies on the recommended default setting.
Touch the forward icon. The OASIS door will unlock for five seconds. If the door is
not opened within five seconds, the unlock icon can be used to unlock the door
manually.
Install the standards bottles following the instructions as shown in the load bottles
dialog box and ensuring that you place the standards bottles in the correct
positions. See Figure
500 ppb sucrose. You may perform multipoint validation by selecting the custom
settings and defining the desired configuration. From left:
• Bottle 1 = blank
• Bottle 2 = empty
• Bottle 3 = 500 ppb sucrose
• Bottle 4 = empty
6-17. The default setting is a blank bottle and one standard of
Page 89
Figure 6-1,
Figure 6-2,
Figure 6-4,
Operator Manual