LaMotte LP-30 User Manual

CHLO RINE & IO DINE TEST KIT

MODEL LP-30 · CODE 6834

QUANTITY CONTENTS CODE

100 DPD #1R Tab lets 6999-J
50 DPD #3R Tab lets 6905-H
15 mL Glycine So lu tion 6811-E
15 mL *Mer cu ric Chlo ride, 0.5% *6611-E
2 Test Tube, 10 mL 0101
1 Chlo rine Com para tor, 0.2-0.3 ppm 6902

*WARNING: Ma te rials marked with a * are con sid ered haz ard ous sub stances.
Ma te rial Safety Data Sheets (MSDS) are sup plied for these re agents. For your
safety read la bel and ac com pa ny ing MSDS be fore us ing.

Or der Re agent Re fill Pack age by Code R-6834.

This test dis tin guishes be tween the con cen tra tion of Chlo rine and
Io dine in mix tures in wa ter sam ples. In ad di tion, de ter mi na tion of the
rel a tive lev els of Free Avail able Chlo rine and To tal Avail able
Chlo rine may be made.

PRO CE DURE

FREE AVAIL ABLE CHLO RINE & IODINE

1. Rinse the test tube (0101) with the wa ter to be tested and then
fill the tube to the 10 mL line.

2. Add 2 drops of *Mer cu ric Chlo ride (6611), cap the tube and
in vert sev eral times to mix.

3. Add one DPD #1R Tab let (6999), cap the tube and shake to
dis solve the tab let.

4. Im me di ately in sert the tube into the com para tor (6902) and
com pare the sam ple with the color stan dards. Re cord the value as
Read ing A. Con tinue with step 5.

COM BINED CHLO RINE

5. Add one DPD #3R Tab let (6905) to the sam ple from Step 4
above, cap tube and shake to dis solve the tab let.

6. Com pare with the color stan dards in the com para tor. Re cord this
value as Read ing B. Dis card the sam ple.

FREE IO DINE

7. Rinse test tube (0101) with the wa ter to be tested. Add 5 drops of
Glycine So lu tion (6811) and then fill the tube to the 10 mL line
with wa ter sam ple.

8. Add 2 drops of *Mer cu ric Chlo ride (6611), cap tube and mix.

9. Add one DPD #1R Tab let (6999), cap tube and shake to dis solve

the tab let.

10. Im me di ately in sert tube into the com para tor and com pare the
sam ple with the color stan dards. Re cord this value as Read ing C.

CALCULATIONS

The test re sults are ob tained as fol lows:

Read ing A= Free Avail able Chlo rine & Io dine as ppm Chlo rine

Read ing A _ Read ing B = Com bined Chlo rine as ppm Chlo rine

Read ing C = Free Io dine ex pressed as ppm Chlo rine

Read ing C x 3.5 = ppm Free Io dine

Read ing A _ Read ing C = Free Avail able Chlo rine as ppm Chlo rine

LaMOTTE COM PANY

Helping Peo ple Solve An a lyt i cal Chal lenges

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

SM

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