Instruction Manual
www.hannainst.com
Dear Customer,
Thank you for choosing a Hanna Product.
Please read the instructions carefully before using the
chemical test kit. It will provide you with the necessary
information for correct use of the kit.
Remove the chemical test kit from the packing material and
examine it carefully to make sure that no damage has
occurred during shipping. If there is any noticeable dam-
age, notify your Dealer or the nearest Hanna office
immediately.
Each kit is supplied with:
• HI 3849-0 Hydrazine Reagent, 2 bottles with drop-
per (50 mL);
• Deionized Water, 1 bottle (500 mL);
• 1 checker disc;
• 2 glass vials with caps;
• 1 plastic pipette (3 mL).
Note:
Any damaged or defective item must be returned in
its original packing materials.
HI 3849
Hydrazine
Test Kit
ISTR3849 10/99 PRINTED IN ITALY
Hydrazine is an artificial chemical and it is not found in
natural waters. It is extensively used as oxygen scavenger
to inhibit corrosion in high pressure boiler feedwater and
reactor cooling water: this reducing chemical reacts with
dissolved oxygen to yield nitrogen and water, so that
hydrazine has the advantage over the sulfite treatment
because it does not produce any dissolved solid in the boiler
water.
CAUTION: Hydrazine is thought to be a carcinogenic
chemical.
Note:
mg/L is equivalent to ppm (parts per million).
Range
0 to 1.00 mg/L (ppm) as Hydrazine
Smallest Increment
0.02 mg/L (ppm) Hydrazine
Analysis Method
Colorimetric
Sample Size
5 mL
Number of Tests
100
Case Dimensions
195x183x72 mm (7.7x7.2x2.8")
Shipping Weight
860 g (30.3 oz.)
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SIGNIFICANCE AND USE
SIGNIFICANCE AND USE
SIGNIFICANCE AND USE
SIGNIFICANCE AND USE
SIGNIFICANCE AND USE
CHEMICAL REACTION
CHEMICAL REACTION
CHEMICAL REACTION
CHEMICAL REACTION
CHEMICAL REACTION
READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT
• Fill one glass vial with 5
mL of the deionized wa-
ter, up to the mark.
• Using the plastic pipette fill the other glass
vial with 5 mL of sample, up to the mark.
• Add 6 drops of HI 3849-0 Hydrazine Reagent to the
deionized water, replace the cap and swirl to mix. This
is the blank.
• Add 6 drops of HI 3849-0 Hydrazine Reagent to the
sample, replace the cap and swirl to mix. This is the
reacted sample.
• Wait for 12 minutes to allow color
to develop.
• Remove the caps, insert the blank into the left hand
opening of the checker disc and the reacted sample into
the right hand opening.
INSTRUCTIONS
INSTRUCTIONS
INSTRUCTIONS
INSTRUCTIONS
INSTRUCTIONS
The chemicals contained in this kit may be hazardous if
improperly handled. Read Health and Safety Data Sheet
before performing this test.
HEALTH AND SAFETY
HEALTH AND SAFETY
HEALTH AND SAFETY
HEALTH AND SAFETY
HEALTH AND SAFETY
REFERENCES
REFERENCES
REFERENCES
REFERENCES
REFERENCES
Adaptation of the ASTM Manual of Water and Environmen-
tal Technology method D1385-88 for Natural and Treated
Water.
Hydrazine reacts with the reagent in acidic solution to form
a yellow complex. The absorbance of this colored product is
proportional to the concentration of hydrazine present in
the aqueous sample.
• Hold the checker disc
so that a light source
illuminates the
samples from the back
windows.
• Rotate the disc while looking at the color test windows
and stop when you find the color match. Read the
value in the result window and record it in mg/L (or
ppm) of Hydrazine.
For best results:
Intensely colored samples will make the color
matching determination difficult and they should be
adequately treated before performing the test. Sus-
pended matter in large amounts should be removed
by prior filtration.
Caution:
Ultraviolet radiation may cause fading of colors.
When not in use, keep the disc protected from light,
in a cool and dry place.
