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OZONE,
continued
Summary of Method
REQUIRED REAGENTS
Description
Ozone AccuVac Ampuls
Select one or more based on range:
0-0.25 mg/L............................................................ 2 ampuls .................25/pkg ..........25160-25
0-0.75 mg/L............................................................ 2 ampuls .................25/pkg ..........25170-25
0-1.50 mg/L............................................................ 2 ampuls .................25/pkg ..........25180-25
Water, deionized ........................................................ varies ........................ 4 L ..............272-56
REQUIRED APPARATUS
Beaker, 50 mL ...............................................................2 ...........................each ...........500-41H
OPTIONAL APPARATUS
AccuVac Snapper Kit ..................................................................................each ..........24052-00
AccuVac Ampule sampler...........................................................................each ..........24051-00
For Technical Assistance, Price and Ordering
In the U.S.A.—Call 800-227-4224
Outside the U.S.A.—Contact the Hach office or distributor serving you.
Estimated Detection Limit
The estimated detection limit for the programs #72, #73, and #74
is 0.02 mg/L O
. For more information on the estimated detection
3
limit, see Section 1.
The reagent formulation adjusts the sample pH to 2.5 after the
ampul has filled. The indigo reagent reacts immediately and
quantitatively with ozone. The blue color of indigo is bleached in
proportion to the amount of ozone present in the sample. Other
reagents in the formulation prevent chlorine interference. No
transfer of sample is needed in the procedure. Therefore, ozone
loss due to sampling is eliminated.
Quantity Required
335
Per Test
Unit
Cat. No.
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