LaMotte LP-1-NMC User Manual

DPD CHLO RINE TEST KIT

L

Mott

L

Mott

MODEL LP-1-NMC •CODE 6901-NMC

QUANTITY CONTENTS CODE

50 *Chlorine DPD #1R Tablets (*6999A) FMC6905A-

6999ABOX
50 Chlorine DPD #3R Tablets (*6905A)
50 *Chlorine DPD #2R Tablets (6904A) FMC6904A-

6906ABOX
50 *Chlorine DPD #4 Instrument Grade Tablets

(*6906A)
3 Test Tubes, plastic, w/caps 0106
1 Chlorine DPD Comparator, 0.1-1.0 ppm 6978

*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 see MSDS CD or 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.

USE OF THE OCTET COM PARA TOR

The Octet Comparator contains eight permanent
color standards. A test sample is inserted into the
openings in the top of the comparator. The
sample can then be compared to four color
standards at once, and the value read off the
comparator. For optimum color comparison, the
comparator should be positioned between the
operator and a light source, so that the light
enters through the special light-diffusing screen in
the back of the comparator. Avoid viewing the
comparator against direct sunlight or an
irregularly lighted background.

PRO CE DURE

FREE AVAILABLE CHLORINE

1. Rinse the test tube (0106) with sample water. Fill to 10 mL line with

sample water.

2. Add one *Chlorine DPD #1R Tablet (6999A). Cap and mix until

tablet disintegrates.

3. Immediately insert test tube into Chlorine DPD Comparator (6978).

Match sample color to a color standard. Record as Reading #1. Do
not discard this sample if testing for Monochloramine, Dichloramine
or Total Residual Chlorine.

NOTE: Reading should be made within one minute of adding
reagent.

Reading #1 = ppm Free Available Chlorine

MONOCHLORAMINE

4. Add one Chlorine DPD #2R Tablet (6904A) to sample from Step 3.

Cap and mix until tablet disintegrates.

5. Insert test tube into Chlorine DPD Comparator (6978). Match

sample color to a color standard. Record as Reading #2.

Reading #2 - Reading #1 = ppm Monochloramine

DICHLORAMINE AND TOTAL RESIDUAL CHLORINE

6. Add one *Chlorine DPD #3R Tablet (6905A) to sample from Step 5.

Cap and mix until tablet disintegrates.

7. Insert test tube into Chlorine DPD Comparator (6978). Match

sample color to a color standard. Record as Reading #3.

Reading #3 - Reading #2 = ppm Dichloramine

Reading #3 = ppm Total Residual Chlorine