Instruction
Manual
HI 3815
Chloride Test Kit
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 damage, notify your Dealer or the nearest
Hanna office immediately.
Each kit is supplied with:
• Reagent 1, 1 bottle with dropper (15 mL);
• Reagent 2, 1 bottle with dropper (30 mL);
• Reagent 3, 1 bottle (120 mL);
• 2 calibrated vessels (10 and 50 mL);
• 1 calibrated syringe.
Note: Any damaged or defective item must be returned in its original
packing materials.
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
Range 0 to 100 mg/L (ppm) Cl
Smallest Increment 1 mg/L [in the 0-100 mg/L range]
Analysis Method Mercuric nitrate titration
Sample Size 5 mL and 50 mL
Number of Tests 110 (average)
Case Dimensions 200x120x60 mm (7.9x4.7x2.4")
Shipping Weight 460 g (1 lb.)
SIGNIFICANCE AND USESIGNIFICANCE AND USE
SIGNIFICANCE AND USE
SIGNIFICANCE AND USESIGNIFICANCE AND USE
Chloride ions are one of the major inorganic anions in water
and wastewater. Although high concentrations of chloride in
water are not known to be toxic to humans, the regulation
of its concentration is mainly due to taste. It is essential to
monitor chloride concentration in boiler systems to prevent
damage of metal parts. In high levels, chloride can corrode
stainless steel and be toxic to plant life.
The Hanna Chloride Test Kit is equipped with all you need
to determine chloride level of water. The kit is quick, easy to
use and portable. The design makes the kit easy to handle
and, except for Reagent 3, practically prevents accidental
injury or damage due to spills.
Note: mg/L is equivalent to ppm (parts per million).
CHEMICAL REACTIONCHEMICAL REACTION
CHEMICAL REACTION
CHEMICAL REACTIONCHEMICAL REACTION
The chloride level in mg/L (ppm) is determined by a mercuric nitrate titration. The pH is lowered to approximately 3 by
addition of nitric acid. Mercuric ions react with chloride ions
to form mercuric chloride. When excess mercuric ions are
present, it complexes with diphenylcarbazone to form a
purple solution. The color change from yellow to purple
determines the end point of this titration.
ISTR3815R1 10/99 PRINTED IN ITALY
0 to 1000 mg/L (ppm) Cl
10 mg/L [in the 0-1000 mg/L range]
INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONS
INSTRUCTIONSINSTRUCTIONS
READ ALL THE INSTRUCTIONS BEFORE USING THE TEST KIT
–
–
LOOK AT THE BACK PAGE FOR THE ILLUSTRATED PROCEDURE
High Range – 0 to 1000 mg/L Chloride
• Remove the cap from the small plastic vessel. Rinse the plastic vessel
with water sample, fill to the 5 mL
mark and replace the cap.
• Add 2 drops of Reagent 1 through the cap port, and
mix carefully swirling the vessel in tight circles. The
solution will become a violet color.
• While swirling the vessel, add Reagent 2 dropwise until the solution
turns yellow.
• Take the titration syringe, and push
the plunger completely into the syringe.
Insert tip into Reagent 3 solution and pull
the plunger out until the lower edge of the
plunger seal is on the 0 mL mark of the
syringe.
• Place the syringe into the cap of the plastic
vessel and slowly add the titration solution
dropwise, swirling to mix after each drop.
Continue adding titration solution until the
solution in the plastic vessel changes from
yellow to violet.
• Read off the milliliters of titration solution from the
syringe scale and multiply by 1000 to obtain mg/L
(ppm) chloride.
x 1000 = Cl
–
Low Range – 0 to 100 mg/L Chloride
If the result is lower than 100 mg/L, the precision of the
test can be improved by following the steps below.
• Remove the cap from the large plastic vessel. Rinse the plastic vessel
with the water sample, fill to the 50
mL mark and replace the cap.
• Proceed with the test as for high range measurement.
• Read off the milliliters of titration solution from the syringe
scale and multiply by 100 to obtain mg/L (ppm) chloride.
x 100 = Cl
Note: Push and twist pipet tip onto tapered end of syringe
ensuring an air-tight fit.
REFERENCESREFERENCES
REFERENCES
REFERENCESREFERENCES
Official Methods of Analysis, A.O.A.C., 14th Edition, 1984,
p. 625.
Standard Methods for the Examination of Water and Waste-
th
water, 16
Edition, 1985, pages 288-290.
HEALTH AND SAFETYHEALTH AND SAFETY
HEALTH AND SAFETY
HEALTH AND SAFETYHEALTH AND SAFETY
The chemicals contained in this test kit may be hazardous if
improperly handled. Read Health and Safety Data Sheets
before performing the test.
–
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HI 3815 CHLORIDE TEST KIT
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1
11
5 mL sample 50 mL sample
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2
22
55
5
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until solution turns yellowuntil solution turns yellow
until solution turns yellow
until solution turns yellowuntil solution turns yellow
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3
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