Hanna Instruments HI 83205 - Manual (Page 42)

42 Hydrazine
HYDRAZINE
SPECIFICATIONS
Range 0 to 400 μg/L
Resolution 1 μg/L
Accuracy ±4% of full scale at 25 °C
Typical EMC ±2 μg/L
Deviation
Light Source
Tungsten lamp with narrow band interference filter @ 420 nm
Method Adaptation of the ASTM Manual of Water and Environmental Technology, method
D1385-88, p-Dimethylaminobenzaldehyde method. The reaction between hydrazine
and the liquid reagent causes a yellow tint in the sample.
REQUIRED REAGENT
Code Description Quantity
HI 93704-0 Liquid Reagent 24 drops
REAGENT SETS
HI 93704-01 Reagents for 100 tests
HI 93704-03 Reagents for 300 tests
For other accessories see page 73.
MEASUREMENT PROCEDURE
• Select the Hydrazine method using the procedure described in
the Method Selection section (see page 12).
• Fill one cuvette up to the mark with 10 mL of distilled water.
• Place the cap, insert the cuvette # 1 into the holder and
close the lid.
• Press the Blank key to start adjusting the light level. The display will show “Blank done” when the
meter is ready to take a zero measurement.
• Fill a second cuvette with 10 mL of unreacted sample (up to
the mark) and replace the cap.
10 mL
# 1
10 mL
# 2
# 1