LaMotte DPD -5910 User Manual

FREE, TO TAL & COM BINED CHLO RINE

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

DPD TEST KIT

CODE 5910

QUANTITY CONTENTS CODE

50 *Chlorine DPD #1R Tablets (6999A) 6905A-6999ABOX
50 *Chlorine DPD #3R Tablets (6905A)
2 Test Tubes, plastic, w/caps 0106
1 Chlorine DPD Comparator, 0.5-5.0 ppm 3596

*WARNING: Reagents marked with a * 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 email,
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 a test tube (0106) with sample water. Fill test tube to 5 mL line
with sample water.

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

3. Immediately insert test tube into Chlorine DPD Comparator (3596).
Match sample color to a color standard. Record as ppm free available
chlorine.

NOTE: Save sample if total residual and combined chlorine are to be
determined.

TOTAL RESIDUAL CHLORINE & COMBINED CHLORINE

5. Add one *Chlorine DPD #3R Tablet (6905A) to the sample from
Step 3. Cap and shake until tablet disintegrates.

6. Insert test tube into Chlorine DPD Comparator (3596). Match
sample color to a color standard. Record as ppm total residual
chlorine.

7. Calculate combined chlorine:

Combined Chlorine (ppm) =

Total Residual Chlorine - Free Available Chlorine

NOTE: Thoroughly clean and rinse test tubes after each test.

LaMOTTE COM PANY

Helping Peo ple Solve An a lyt i cal Challenges

PO Box 329 • Chestertown • Mary land • 21620 • USA

800-344-3100 • 410-778-3100 (Out side U.S.A.) • Fax [phone]

Visit us on the web at www.lamotte.com

®

9/06