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CHEMICAL OXYGEN DEMANDCHEMICAL OXYGEN DEMAND
CHEMICAL OXYGEN DEMANDCHEMICAL OXYGEN DEMAND
CHEMICAL OXYGEN DEMAND
LOW RANGELOW RANGE
LOW RANGELOW RANGE
LOW RANGE
SPECIFICATIONS
Range 0 to 150 mg/L
Resolution 1 mg/L
Precision Standard deviation ±4 @ 150 mg/L
Typical EMC ±1 mg/L
Deviation
Light Source Tungsten lamp with narrow band interference
filter @ 420 nm
Method Adaptation of the EPA method 410.4. Oxidizable
organic compounds reduce the dichromate ion
(orange) to the Chromium (III) ion (green). The
amount of remaining dichromate is determined.
REQUIRED REAGENTS
Code Description Quantity
HI 93754A Liquid Reagent 25 vials
REAGENT SETS AND ACCESSORIES
C 9800-01 Hanna Reactor (115 VAC)
C 9800-02 Hanna Reactor (230 VAC)
HI 93754A-25 Reagents for up to 24 tests
HI 740216 Test tube cooling rack (25 holes)
HI 740217 Laboratory bench safety shield
For other accessories see page 141.
MEASUREMENT PROCEDURE
Before starting to use the reagent kit it is important to read carefully all
the instructions and the Health & Safety Data Sheet
(HSDS). Pay particular attention to all warnings, cau-
tions and notes. Failure to do so may result in serious
injury to the operator.
• Choose a homogeneous sample. Samples containing settleable
solids need to be homogenized with a blender.
COD LR
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