YSI 900 - Methods; Chlorine, With Tablet (Cl 6)

8
Methods
!
Zero
Test
Zero
Test
CL 6
Tablet Powder
CL 6
Tablet Powder
CL 6
Tablet Powder
0.0.0
Tablet Powder
RESULT
Tablet Powder
RESULT
Tablet Powder
Chlorine with Tablet: 0.01 – 6.0 mg/l
a) Free Chlorine
Fill a clean vial (24 mm Ø) with 10 ml of the water sample  

empty it, leaving a few drops
remaining in the vial.
Add one DPD No. 1 tablet 



dissolved.





b) Total Chlorine
Add one DPD No. 3 tablet 


dissolved.


Wait for a reaction period of 2 minutes.



c) Combined Chlorine

Tolerances:





!
Zero
Test
Zero
Test
CL 6
Tablet Powder
CL 6
Tablet Powder
CL 6
Tablet Powder
0.0.0
Tablet Powder
RESULT
Tablet Powder
RESULT
Tablet Powder