Hanna Instruments HI 38014 User Manual
Instruction Manual
HI 38014
T otal Alkalinity
Test Kit
www.hannainst.com
Dear Customer,
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,
do not hesitate to e-mail us at tech@hannainst.com.
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.
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:
• Bromophenol Blue Indicator, 1 bottle with dropper
•
• 1 calibrated plastic vessel (20 mL) with cap
• 1 syringe (1 mL) with tip.
Note: Any damaged or defective item must be returned in
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
(10 mL);
HI 38014-0 Alkalinity Reagent, 1 bottle (110 mL);
;
its original packing materials.
SPECIFICATIONSSPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONSSPECIFICATIONS
Range 0 to 500 gpg CaCO
Smallest Increment 5 gpg CaCO
Analysis Method Acid titration using bromophenol blue
Sample Size 5 mL
Number of Tests 100
Case Dimensions 200x120x60 mm (7.9x4.7x2.4")
Shipping Weight 363 g (12.8 oz.)
SIGNIFICANCE AND USESIGNIFICANCE AND USE
SIGNIFICANCE AND USE
SIGNIFICANCE AND USESIGNIFICANCE AND USE
Alkalinity is the quantitative capacity of a water sample to
neutralize an acid to a set pH. This measurement is very
important in determining the corrosive characteristics of water
due primarily to hydroxide, carbonate and bicarbonate ions.
Other sources of alkalinity can be from anions that can be
hydrolyzed such as phosphate, silicate, borate, fluoride and
salts of some organic acids. Alkalinity is critical in the treatments of drinking water, wastewater, boiler & cooling systems.
The Hanna Alkalinity Test Kit makes monitoring easy and
quick. The compact size gives the user the versatility to use
the kit anywhere. The design makes the kit easy to handle.
Note: 1 gpg (grains per gallon) CaCO
ppm CaCO
equivalent to mg/L).
(where ppm - parts per million - is
3
CHEMICAL REACTIONCHEMICAL REACTION
CHEMICAL REACTION
CHEMICAL REACTIONCHEMICAL REACTION
Total Alkalinity is determined by neutralizing the sample to
a pH of 4.5 using a dilute sulfuric acid solution and a
bromophenol blue indicator. This process converts hydroxide
ions to water, carbonate and bicarbonate ions to carbonic
acid:
ISTR38014 11/00 PRINTED IN ITALY
2OH
2CO
2HCO
–
+H2SO
–
2
+H2SO
3
–
+H2SO
3
→ 2H
4
→ 2HCO
4
→ 2H
4
is equivalent to 17
3
–
2
O+SO
2
4
–
–
2
+SO
3
4
2
+SO
2CO3
4
INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONS
INSTRUCTIONSINSTRUCTIONS
3
3
READ ALL THE INSTRUCTIONS BEFORE USING THE TEST KIT
Determination of Total Alkalinity
• Remove the cap from the plastic
vessel. Rinse the plastic vessel with
water sample, fill to the 5 mL
5 mL
• Continue adding titration solution until the solution in
the plastic vessel turns yellow.
• Read off the milliliters of titration solution from the
syringe and multiply by 500 to obtain gpg CaCO
Total Alkalinity.
of
3
mark and replace the cap.
mL of titrant x 500 = gpg CaCO
• Through the cap port, add 1 drop of Bromophenol Blue
3
Indicator and mix. If the solution is yellow, then it is
acidic and an acidity test must be carried out (see HI 3820
– Hanna Acidity Test Kit). If the solution is green or
REFERENCESREFERENCES
REFERENCES
REFERENCESREFERENCES
blue, then proceed to next step.
1987 Annual Book of ASTM Standard, Volume 11.01
Water (1), pages 151-158.
th
Edition, 1984.
x 1
• Take the syringe and push
the plunger completely down
into the syringe. Insert tip
into the HI 38014-0 Alkalinity Reagent and pull the
Official Methods of Analysis, A.O.A.C., 14
Standard Methods for the Examination of Water and
Wastewater, 18
th
Edition, 1992, pages 445-446.
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 the relevant Health and Safety
Data Sheets before performing the test.
plunger out until the lower
edge of the seal is on the
0.0 mL mark of the syringe.
• Place the syringe tip into the cap port of the plastic
vessel and slowly add the titration solution drop by
drop, swirling after each drop.
–
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