Hach DR/700 - Page 251

50-1
Method 8139
CYANURIC ACID (0 to 50 mg/L)
For water
Turbidimetric Method*
1. Fill a 25-mL cell
to the 25-mL line
with sample.
Note: Filtering is
required for highly
colored or turbid
samples. Use the
labware listed under
Optional Apparatus.
Large amounts of color
or turbidity will
interfere and cause high
readings.
Note: The DR/700 must
be calibrated before
sample analysis. See
Calibration following
these steps.
2. Install module
50.01
in a DR/700.
3. Press: I/O
The display will show
500 nm
and module number
50.01
*User calibration required. Range is approximate.