6
ANALYSIS
PROCEDURE
1. Use the 50 mL graduated
cylinder (0418) to carefully add
45 mL of Ozone Buffer (3991) to
amber glass bottle marked HR
Reagent (
3988-MT-G
).
2. Use the 5 mL volumetric pipet
(0329) and pipette pump
(30527) to add 5 mL of Indigo
Blue Stock Solution (3989) to
the amber glass bottle. Cap and
mix.
3. Use the 1.0 mL transfer pipet
(2-2170) and pipette pump
(30527) to add 1.0 mL of HR
Reagent (3988) to each of 2
clean colorimeter tubes (0290).
4. If chlorine is present, add 3
drops Chlorine Inhibitor (3990)
to each tube. Cap tubes.
5. Take one of the prepared
colorimeter tubes and sampling
apparatus (0681) to sampling
site.
Analy
sis
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