Instruction Manual
www.hannainst.com
DearCustomer,
Thank you for choosing a Hanna Product.
Please read the instruction sheet carefully before using the
test kit. It will provide you with the necessary information
for correct use of the kit. If you need additional information,
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 93711-0 Total Chlorine Reagent, packets (100 pcs);
• Deionized Water, 1 bottle (500 mL);
• 1 checker disc (containing the 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 38016
Total Chlorine
Medium Range
Test Kit with
Checker Disc
ISTR38016 02/00 PRINTED IN ITALY
Chlorine is the most commonly used water disinfectant in
applications that vary from treatment of drinking water
and wastewater, pool and spa sanitization, to food process-
ing and sterilization. Chlorine present in water binds with
bacteria, leaving only a part of the original quantity (free
chlorine) to continue its disinfecting action. If the free
chlorinelevelisimproperwithrespecttopH,waterwillhave
an unpleasant taste and odor and the disinfecting poten-
tial of the chlorine will be diminished.
Free chlorine reacts with ammonium ions and organic
compounds to form chlorine compounds resulting in dimin-
ished disinfecting capabilities compared with free chlorine.
Chlorine compounds together with chloramines form com-
binedchlorine. Combined chlorine and free chlorine together
result in total chlorine.
Whilefreechlorinehas a much higher disinfectant potential,
combined chlorine has a much higher stability and has a
lesservolatility.
Note: mg/L is equivalent to ppm (parts per million).
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SIGNIFICANCE AND USESIGNIFICANCE AND USE
SIGNIFICANCE AND USESIGNIFICANCE AND USE
SIGNIFICANCE AND USE
CHEMICAL REACTIONCHEMICAL REACTION
CHEMICAL REACTIONCHEMICAL REACTION
CHEMICAL REACTION
INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONS
The reaction between chlorine and the DPD reagent causes
a pink tint in the sample which is proportional to the
chlorineconcentration.
Range 0 to 3.5 mg/L (ppm) as Total Chlorine
SmallestIncrement 0.1 mg/L
AnalysisMethod Colorimetric
Sample Size 5 mL
Number of Tests 100
CaseDimensions 235x175x115 mm (9.2x6.9x4.5")
Shipping Weight 977 g (34.5 oz.)
READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT
• Use the pipette to fill each glass vial with
5 mL of sample (up to the mark).
• Insert one of the vials into the left hand opening of the
checker disc. This is the blank.
• Add to the other vial deionized water up to the 10 mL
mark. Replace the cap and shake to mix.
• Remove the cap and add 1 packet of HI 93711-0
reagent. Replace the cap and mix.
• Wait for 2 minutes to allow reaction to
occur. This is the reacted sample.
• Remove the cap and insert the
reacted sample into the right
handopeningofthechecker disc.
• Hold the checker disc so that a
light source illuminates the
samples from the back of the
windows.
• Keep the checker disc at a distance of 30-40 cm (12-
16") from the eyes to match the color. 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 directly in mg/L (or ppm) of Chlorine.
For best results: Perform the reading three times and
take the average value (divide by 3 the sum of the
three numbers). Intensely colored samples will make
the color matching 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.
Interferences: bromine, iodine, fluorine, ozone, oxidized
manganese and chromium.
The chemicals contained in this kit may be hazardous if
improperly handled. Read the relevant Health and Safety
Data Sheet before performing this test.
HEALTH AND SAFETYHEALTH AND SAFETY
HEALTH AND SAFETYHEALTH AND SAFETY
HEALTH AND SAFETY
REFERENCESREFERENCES
REFERENCESREFERENCES
REFERENCES
Adaptation of the EPA recommended DPD method 330.5.
5 mL
