23
AMMONIA HIGH RANGE
AMMONIA HIGH RANGE
AMMONIA HIGH RANGE
AMMONIA HIGH RANGE
AMMONIA HIGH RANGE
SPECIFICATIONS
Range
0.0 to 50.0 mg/L
Resolution
0.1 mg/L
Accuracy
±0.5 mg/L ±5% of reading
Typical EMC
±0.1 mg/L
Deviation
Light Source
Tungsten lamp with narrow band interference
filter @ 420 nm
Method
Adaptation of the
ASTM Manual of Water and
Environmental Technology, D1426-92
, Nessler
method. The reaction between ammonia and
reagents causes a yellow tint in the sample.
REQUIRED REAGENTS
Code
Description
Quantity
HI 93733
A
-0 Nessler Reagent
4 drops (in fresh and seawater)
HI 93733
B
-0 Ammonia Reagent 9 mL (in fresh and seawater)
REAGENT SETS
HI 93733-01
Reagents for 100 tests
HI 93733-03
Reagents for 300 tests
For other accessories see page 141.
MEASUREMENT PROCEDURE
• Select the program number corresponding to Ammonia HR on the
secondary LCD by pressing PROGRAM
W
and
V
.
• Fill a cuvet with 1 mL of unreacted sample, by
means of the syringe.
• Add 9 mL of HI 93733B
Ammonia Reagent, by
means of the 3 mL plastic
pipette. Place the cap and
swirl the solution to mix.
• Place the cuvet into the holder and
ensure that the notch on the cap is
positioned securely into the groove.
Ammonia HR
1 mL of
sample
9 mL