LaMotte SMART Spectro Spectrophotometer - Manual (Page 190)

OZONE
INDIGO METHOD • CODE 365I-SC
QUANTITY CONTENTS CODE
15 mL Chlorine Inhibitor 3990-E
250 mL * Ozone Buffer *3991-K
30 mL Indigo Blue Stock Solution 3989-G
1 Sampling Apparatus 0681
1 Pipet, transfer, 1.0 mL 2-2170
1 Pipet, transfer, 5 mL 0329
1 Pump, 10 mL 30527
1 Bottle, HR Reagent, amber glass 0680-J
1 Graduated Cylinder, 50 mL, glass 0418
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 e-mail, phone or fax.
Ozone is sometimes used in place of, or in conjunction with, chlorine or other
halogens for disinfection of pool, spa, or drinking waters. Recently, large
aquatic facilities have begun using ozone as a disinfectant in many artificial
habitats.
APPLICATION: Drinking water; swimming pool water.
RANGE: 0.00–0.40 ppm Ozone, Low Range
0.00–1.50 ppm Ozone, High Range
METHOD: Ozone rapidly and stoichiometrically decolorizes Indigo
Trisulfonate under acidic conditions.
SAMPLE
HANDLING &
PRESERVATION: Ozone is extremely unstable in aqueous solutions. Test must
be performed immediately and the sample must not be
agitated.
INTERFERENCES: Manganese at any level interferes.
SMART SPECTRO TEST PROCEDURES 07.05 Ozone 1/3