LaMotte HYDROGEN PEROXIDE & PERACETIC ACID KIT Drop Count - Manual

HYDROGEN PEROXIDE &
PERACETIC ACID KIT
Drop Count
CODE 7191-02
QUANTITY CONTENTS CODE
30 mL *Sulfuric Acid, 1:1 *6141WT-G
15 mL Ferroin Indicator 6410-E
2 x 30 mL *Hydrogen Peroxide Titrant *5650LWT-G
30 mL *Potassium Iodide 20% Solution *6521-G
60 mL Peracetic Acid Titrant S-6155-H
1 Test Tube, 5-10-25 mL, plastic, w/cap 0715
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 specifi ed code number.
NOTE: Do not use for tapwater or less than 20 ppm peracetic acid.
PROCEDURE
HYDROGEN PEROXIDE
1. Fill test tube (0715) to 10 mL line with sample water.
2. Add 10 drops of *Sulfuric Acid, 1:1 (6141WT). Swirl to mix. Make sure solution
is thoroughly mixed.
3. Add 1 drop of Ferroin Indicator (6410). Swirl to mix. Make sure solution is
thoroughly mixed. Solution will turn pale orange-pink if hydrogen peroxide is
present.
4. While gently swirling tube, add *Hydrogen Peroxide Titrant (5650LWT) one drop
at a time until pale orange-pink color changes to colorless or pale yellow. Make
sure solution is thoroughly mixed. Count the number of drops added. Hold bottle
vertically.
5. Discard titrated sample and rinse tube out with sample water.
6. Multiply the number of drops used in Step 4 by 50 (fi fty). Record as ppm
Hydrogen Peroxide.