Chlorine - LaMotte DC1500 Manual De Instrucciones

4. Scroll to and select 025 Chlorine T
DPD from menu.
5. Rinse a clean tube (0290) with
sample water. Fill to the 10 mL line
with sample. Cap and wipe dry.
6. Insert tube into chamber, close lid
and select Scan Blank.
7. Remove tube from colorimeter.
Add one DPD #1 IG Tablet (6903A).
Cap tube and shake for 10
seconds. Invert slowly 5 times.
Solution will turn pink if free
chlorine is present.
8. Immediately insert tube into
chamber. Close lid. Select Scan
Sample. Record result as Free

Chlorine.

PROCEDURE – COMBINED CHLORINE
9. Remove tube from colorimeter.
Add one DPD #3 IG Tablet (6197A).
Cap tube and shake for 10
seconds. Invert slowly 5 times.
An increase in color represents
combined chlorine.
NOTE: For wastewater samples, Standard Methods for the Examination of Water and
Wastewater recommends waiting 2 minutes for full color development when testing
total chlorine.
025 Chlorine T DPD
Scan Blank
Scan Sample
12:00:00
025 Chlorine T DPD
0.99
ppm
Scan Blank
Scan Sample
12:00:00
6
001/500
001/500