LaMotte 4824-DR-LT User Manual
TO TAL, CAL CIUM & MAG NE SIUM
L
Mott
WARNING! This set contains chemicals
that may be harmful if misused. Read
cautions on individual containers
carefully. Not to be used by children
except under adult supervision
HARD NESS TEST KIT
CODE 4824-DR-LT
QUANTITY CONTENTS CODE
15 mL *Sodium Hydroxide Reagent
w/Metal Inhibitor
50 Calcium Hardness Indicator Tablets T-5250-H
15 mL *Hardness Reagent #5 *4483-E
100 Hardness Reagent #6 Tablets 4484-J
60 mL Hardness Reagent #7 4487DR-H
1 Test Tube, 5-10-12.9-15-20-25 mL,
glass, w/cap
1 Direct Reading Titrator, 0-200 Range 0382
1 Pipet, 0.5 mL, plastic 0353
*WARNING: Reagents marked with an * are considered to be potential health
hazards. To view or print a Material Safety Data Sheet (MSDS) for these
reagents go to www.lamotte.com. To obtain a printed copy, contact LaMotte by
e-mail, phone or fax.
To order individual reagents or test kit components, use the specified code
number.
NOTE: Read Direct Reading Titrator Manual before proceeding. The
Titrator is calibrated in terms of hardness expressed as parts per million (ppm)
Calcium Carbonate as CaCO3. Each minor division on the Titrator scale
equals 4 ppm CaCO3.
*4259-E
0608
TOTAL HARDNESS TEST PROCEDURE
If the plunger reaches the bottom line on the scale
(200 ppm) before the endpoint color change occurs, refill
Read the test
result directly
from the scale
where the large
ring on the
Titrator meets the
Titrator barrel.
Record as ppm
Total Hardness as
(CaCO ).
3
7.
NOTE:
the Titrator and continue the titration. When recording the test result,
be sure to include the value of the original amount of reagent dispensed
(200 ppm).
Parts per million CaCO may be converted to grains per gallon (gpg)
3
CaCO :
3
gpg CaCO = ppm CaCO x 0.058
33
EXAMPLE:
Plunger tip is
2 minor divisions
below line 80.
Test result is:
80 + (2 divisions x 4)
= 88 ppm.
80
100
Result:
88 ppm
120
2.
5.
Fill
Direct Reading
Titrator (0382)
with Hardness
Reagent #7
(4487DR).
Insert the
Titrator into
the center
hole of the
test tube cap.
1.
3.
4.
tube, slowly press
the plunger to
titrate until the
red color changes
to clear blue.
Add 5 drops
of *Hardness
Reagent #5
(4483).
Swirl to mix.
Add one Hardness
Reagent #6 Tablet
(4484). Cap and swirl
Fill a test
tube (0608)
to the 12.9
mL line with
the sample
water.
until tablet disintegrates.
Solution will turn red if
hardness is present.
If solution is blue,
there is no
measurable
amount of
hardness.
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
While gently
swirling the
6.
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
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