11. Record the result as Total Chlorine. Total Chlorine (L)
1.00 ppm
* Scan Sample
16:02:19 01/04/05
12. Press OFF to turn the meter off or
press to exit to a previous menu
or make another menu selection.
*Warning: Reagents marked with an * are considered to be potential health hazards.
To view or print a Material Safety Data Sheet (MSDS) for these reagents see MSDS CD
or our web site. To obtain a printed copy, contact us by e-mail, phone or fax.
Note: For the most accurate results, samples over 6 ppm chlorine should be diluted
with chlorine demand free water and re-tested.
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 should be diluted with Chlorine Demand Free Water. To prepare Chlorine
Demand Free water follow the procedure in Standard Methods for the Analysis of
Water and W astewater.
Standard Solutions
Standard solutions should be prepared from a sodium hypochlorite solution and
chlorine demand free water. The concentration of the standards should be verified by a
Ferrous Ammonium Sulfate titration. An approximately 250 ppm chlorine standard
(Code 6973-H, 60 mL) and a Chlorine titration kit (Code 3176-01) are available
from LaMotte Company.
60 CALIBRATION & ANALYSIS • CHLORINE
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