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Free, combined and total chlorine may be determined
using DPD with either colorimetric or titrimetric methods. These determinations are
generally limited to concentrations of 0-10ppm, although the FAS titration can test higher
concentrations with the addition of more DPD indicator. Higher concentrations require the
iodometric titration, whereby the sample is acidified and iodide is added, which is
oxidized by chlorine to iodine and is titrated with a standard
Thiosulfate solution. |
 |
Octet Comparator and Octa-Slide |
The Octet Comparator and Octa-Slide contain eight color standards with
built-in filters which eliminate optical distortion. The color standards in
the Octet Comparator are arranged so that the sample can be compared to four
standards at once. In the Octa-Slide, the standards are placed in a bar so
that they can be compared to the sample individually. |
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Direct Reading Titrator
|
The Direct Reading Titrator
is a 1.0 mL microburet calibrated to allow direct reading of the test
result. Each Titrator has a specific range, but may be refilled to test
higher concentrations.
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Dropper Bottle |
The
dropper bottle test uses bottle tips which deliver a consistent standard
drop size to add titrant to the sample. As with the drop count test, the
number of drops used to complete the reaction is multiplied by a given
equivalence factor to determine the concentration. |
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Item #
|
Test Material
|
|
Test System
|
Range/Sensitivity |
# of Tests
(# Reagents) |
Weight
lbs. |
|
LLI3308* |
Free & Total Chlorine |
|
DPD Tablet
Octa-Slide |
0.2, 0.4, 0.6, 0.8,
1.0, 1.5, 2.0, 3.0 ppm Cl |
50 (2) |
1 |
| L1050102* |
Free & Total Chlorine |
|
DPD Tablet
Octa-Slide |
0.1, 0.2, 0.3, 0.4,
0.5, 0.6, 0.8, 1.0 ppm Cl |
50 (2) |
1 |
| L1050202* |
Free & Total Chlorine |
|
DPD Tablet
Octa-Slide |
1.0, 1.5, 2.0, 2.5,
3.0, 4.0, 5.0, 6.0 ppm Cl |
50 (2) |
1 |
| L1050302* |
Free & Total Chlorine |
|
DPD Tablet
2 Octa-Slides |
Low:
0.1–1.0 ppm Cl
High: 1.0–6.0 ppm Cl |
100 (2) |
1 |
| L1050402 |
Free & Total Chlorine |
|
DPD
Octa-Slide |
1.0, 2.0, 3.0, 4.0,
5.0, 6.0, 8.0, 10.0 ppm Cl |
50 (2) |
1 |
| L1050502**† |
|
|
Oxidizer**
Automatic Buret |
1 mL=0.1 mg Cl
|
50 at 10 ppm (11) |
13+5 |
| LLI317601*† |
|
|
Direct
Reading Titrator |
0-10 ppm/0.2 ppm Cl |
50 at 10 ppm (4) |
2 |
| L1050602 |
Chlorine or Bromine |
|
Chlorine
or Bromine
Direct Reading Titrator |
0-10 ppm/0.2 ppm Cl
or Br |
50 at 10 ppm (3) |
1 |
| L1050702 |
|
|
Dropper
Bottle Titration |
1 drop = 0.2 or 0.5
ppm Cl |
50 (2) |
1 |
| L1050802 |
DPD Free, Mono, and
Dichloramines & Total Cl |
|
DPD Tablet
Octa-Slide |
0.2, 0.4, 0.6, 0.8,
1.0, 1.5, 2.0, 3.0 ppm Cl |
50 (4) |
1 |
| L1090002 |
DPD Free, Mono and
Dichloramines, Total Cl, pH |
|
DPD
Tablet/
Phenol Red Tablet
3 Octet Comparators |
Low:
0.1–1.0 ppm Cl
High: 1.0–6.0 ppm Cl
pH: 6.8–8.2 |
200 (5) |
7 |
| L1051102 |
Iodometric Titration for
High Total Cl |
|
Direct
Reading Titrator |
0–200 ppm/4 ppm Cl |
50 at 200 ppm (3) |
1 |
| L1051202 |
Iodometric Titration for
High Total Cl |
|
Dropper
Pipet |
1 drop = 1 ppm Cl |
50 (3) |
1 |
|
LLI710502 |
Chlorine Bleach |
|
Direct
Reading Titrator |
0–10%/0.2% Cl |
50 at 10% (3) |
2 |
| L1051302 |
Chlorine Bleach |
|
Dropper
Pipet |
1 drop = 0.005%,
0.05%, or 0.5% Cl |
50 at 0.1, 1.0, or
10% (3) |
1 |
*(NPDWR) EPA Accepted
†(NPDES) EPA Accepted
** Free and combined chlorine, bromine, iodine, chlorine, mixtures, chlorine
dioxide, nitrogen trichloride, ozone and ozone mixtures. |
| |
PURCHASE CHLORINE TEST KITS
|
|
ITEM NUMBER |
DESCRIPTION |
PRICE |
PURCHASE FREE & TOTAL TEST KITS
|
|
|
DPD
Tablet
Octa-Slide Free & Total Test Kit |
|
|
|
DPD
Tablet
Octa-Slide Free and Total Test Kit |
|
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|
DPD
Tablet
Octa-Slide Free & Total Test Kit |
|
|
|
DPD
Tablet
2 Octa-Slides
Range: Low:
0.1–1.0 ppm Cl
High: 1.0–6.0 ppm Cl
100 Tests |
|
|
|
DPD
Octa-Slide
Range: 1.0,
2.0, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0 ppm Cl
50 Tests |
|
PURCHASE DPD-FAS TITRATION TEST KITS
|
|
|
Oxidizer** Automatic Buret
Range/Sensitivity: 1 mL=0.1 mg
Cl
50 Tests at 10 ppm
|
|
|
|
Direct Reading Titrator
Range/Sensitivity: 0–10 ppm/0.2 ppm Cl
50 Tests at 10 ppm |
|
|
|
Chlorine or Bromine
Direct Reading Titrator
Range/Sensitivity: 0–10 ppm/0.2 ppm Cl or Br
50 Tests at 10 ppm |
|
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FAS
Dropper Bottle Titration
Range/Sensitivity: 1 drop = 0.2 or 0.5 ppm Cl
50 Tests |
|
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PURCHASE DPD FREE , MONOCHLORAMINE, DICHLORAMINE & TOTAL CHLORINE
|
|
|
DPD
Tablet
Octa-Slide
Range: 0.2,
0.4, 0.6, 0.8, 1.0, 1.5, 2.0, 3.0 ppm Cl
50 Tests |
|
PURCHASE DPD FREE, MONO & DICHLORAMINES, TOTAL CHLORINE, pH TEST KITS
|
|
|
DPD
Tablet/Phenol Red Tablet
3 Octet Comparators
Range:
Low:
0.1–1.0 ppm Cl
High: 1.0–6.0 ppm Cl
pH: 6.8–8.2
200 Tests |
|
PURCHASE IODOMETRIC TITRATION KITS (FOR HIGHER TOTAL CHLORINE LEVELS)
|
|
|
Direct
Reading Titrator
Range/Sensitivity: 0–200
ppm/4 ppm Cl
50
Tests at 200 ppm |
|
|
|
Dropper
Pipet
Range: 1
drop = 10 ppm Cl
50 Tests
at 200 ppm |
|
|
|
Dropper
Pipet
Range: 1
drop = 1 ppm Cl
50 Tests |
|
PURCHASE CHLORINE BLEACH, IODOMETRIC TITRATION TEST KITS
|
|
|
Direct
Reading Titrator
Range/Sensitivity: 0–10%/0.2%
Cl
50
Tests at 10% |
|
|
|
Dropper
Pipet
Sensitivity: 1
drop = 0.005%, 0.05%, or 0.5% Cl
50
Tests at 0.1, 1.0, or 10% |
|
*(NPDWR)
EPA Accepted †(NPDES)
EPA Accepted Direct Reading Titrators have a specific range, but may be refilled to
test higher concentrations. |
| **
Free & combined chlorine, bromine, iodine, chlorine, mixtures, chlorine dioxide,
chlorite, nitrogen trichloride, ozone and ozone mixtures. |
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