Test Procedures
OZONE
INDIGO METHOD • CODE 365I-SC
QUANTITY
CONTENTS
CODE
15 mL
Chlorine Inhibitor
3990-E
250 mL
Ozone Buff er
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
3988-MT-G
1
Graduated Cylinder, 50 mL, glass
0418
*WARNING:
Reagents marked with an * are considered to be potential health hazards. To
view or print a Safety Data Sheet (SDS) for these reagents go to www.lamotte.com.
Search for the four digit reagent code number listed on the reagent label, in the contents
list or in the test procedures. Omit any letter that follows or precedes the four digit code
number. For example, if the code is 4450WT-H, search 4450. To obtain a printed copy,
contact LaMotte by email, phone or fax.
Emergency information for all LaMotte reagents is available from Chem-Tel:
(US, 1-800-255-3924) (International, call collect, 813-248-0585).
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 artifi cial habitats.
APPLICATION:
Drinking water; swimming pool water.
RANGE:
0.00–0.40 ppm Ozone, Low Range
0.00–1.50 ppm Ozone, High Range
MDL:
0.02 ppm, Low Range
0.05 ppm, 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 2 Test Procedures 05.02.16
OZONE
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