Hach DR/850, Procedures Manual, Page: 125 / 460

125
Method 8167
CHLORINE, TOTAL
(0 to 2.00 mg/L) For water, wastewater and seawater
DPD Method
(Powder Pillows or AccuVac Ampuls)
USEPA accepted for reporting water and wastewater analyses
*
Note: This product has not been evaluated to test for chlorine and chloramines in medical
applications in the United States.
Using Powder Pillows
* Procedure is equivalent to USEPA method 330.5 for wastewater and Standard Method 4500-Cl G
for drinking water.
1.
Enter the stored
program number for
total chlorine (Cl
2
)
powder pillows.
Press:
PRGM
The display will show:
PRGM ?
Note: For most accurate
results, perform a Reagent
Blank Correction using
deionized water (see
Section 1).
2.
Press:
9 ENTER
The display will show
mg/L, Cl2 and the
ZERO icon .
3.
Fill a sample cell
with 10 mL of sample
(the blank).
Note: Samples must be
analyzed immediately and
cannot be preserved for
later analysis.
4.
Place the blank into
the cell holder. Tightly
cover the sample cell
with the instrument cap.