6. Removethetubefromthemeter.
Empty the tube. Rinse the tube with
thesamplewater.Fillthetubeto
the 10 mL line with the sample
water.
7. Open the meter lid. Insert the tube
with the sample water. Align the
index notch on the positioning ring
with the index arrow on the meter.
Close the lid. Scroll down and press
*IOK to select Scan Sample.
Color
* Scan Sample
16:02:19 01/04/05
8. Record the result. Color
28.0 cu
* Scan Sample
16:02:19 01/04/05
9. Press OFF to turn the meter off or
press to exit to a previous menu
or make another menu selection.
Note: The meter will remember the last scanned blank reading. It is not necessary to
scan a blank each time the test is performed. To use the previous blank reading,
instead of scanning a new one, scroll to Scan Sample and proceed. For the most
accurate results, the meter should be blanked before each test and the same tube with
tubepositioningringshouldbeusedfortheblankandthereactedsample.
Dilution Procedures
Samples and standards may be diluted with distilled or deionized water.
Standard Solutions
The meter has been calibrated with colored standards of known concentrations of
platinum cobalt. One unit of color is equivalent to the color that is produced by 1 mg
platinum/L in the form of the chloroplatinate ion. A 500 cu Color Standard (60 mL,
Code 6058-H) is available from LaMotte.
70 CALIBRA TION & ANALYSIS • COLOR
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