COLORIMETER
CHLORINE SECONDARY STANDARDS
CODE 4140-03
QUANTITY
CONTENTS
CODE
1
DPD Chlorine Color Standard Blank
4136-E
1
DPD Chlorine Color Standard A
4147-E
1
DPD Chlorine Color Standard B
4138-E
1
DPD Chlorine Color Standard C
4139-E
Emergency information for all LaMotte reagents is available from Chem-Tel
(US, 1-800-255-3924) (International, call collect, 813-248-0585).
These color standards are to be used as Chlorine Secondary Standards and are not
intended to be used as calibration standards.
If the color standards are to be used with more than one colorimeter, copy and fi ll
out the Data Sheet for each meter. Do not write the standard values on the color
standard caps.
These color standards are to be used as Chlorine Secondary Standards to verify the
performance of the meter and are not intended to be used as calibration standards.
The meter is calibrated at the time of manufacture. The standards should be read on
the meter when they are received and the results should be recorded. Periodically, as
determined by the user, the standards should be read on the same meter and the
results should be compared to the initial readings. The meter is performing satisfactorily
if the difference between the initial readings and the current readings is within the
specifi ed tolerances on the data sheet.
The initial readings for the standards should be approximately:
Standard A
0.1 - 0.4 ppm
Standard B
0.9 - 1.2 ppm
Standard C
2.2 - 3.0 ppm
The exact value of the standards will vary on different types of meters. The critical
measurement is the change in the readings over time, not the value of readings.
Summary of Contents for 4140-03
Page 11: ...BLANK...
