101
CHLORINE, FREE, Ultra-high Range (0.0–10.0 mg/L Cl
2
) Method 10069
DPD Method USEPA accepted for reporting drinking water analyses
*
For testing higher levels of free chlorine (hypochlorous acid
and hypochlorite) in drinking water, cooling water,
and industrial process waters
Note: This product has not been evaluated to test for chlorine and chloramines in medical
applications in the United States.
* Procedure is equivalent to USEPA method 330.5 for wastewater and Standard Method 4500-C1-G for drinking
water.
1. Enter the user
program number for
Chlorine, UHR.
Press:
PRGM
The display will show:
PRGM?
Note: If the chlorine is
typically less than 2.0 mg/
L, use method 8021,
program number 9.
2. Press:
12 ENTER
The display will show
mg/L Cl
2
then: ZERO
3. Fill the 10-mL/1-cm
cell to the 5-mL line
with sample.
4. Place the cell into
the instrument. Cover
the sample cell tightly
with the instrument cap.
Note: Place the cell into
the cell holder as
illustrated. The sample cell
tab should be at the 6
o’clock position and
completely seated in the
cell holder slot.
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