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CHEMICAL OXYGEN DEMANDCHEMICAL OXYGEN DEMAND

CHEMICAL OXYGEN DEMAND

MEDIUM RANGEMEDIUM RANGE

MEDIUM RANGE

SPECIFICATIONS

Range 0 to 1500 mg/L

Resolution 1 mg/L

Precision Standard deviation ±22 @ 1000 mg/L

Typical EMC ±1 mg/L

Deviation

Light Source Tungsten lamp with narrow band interference

filter @ 610 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 Chromium (III) formed is determined.

REQUIRED REAGENTS

Code Description Quantity

HI 93754B Liquid Reagent 25 vials

REAGENT SETS AND ACCESSORIES

C 9800-01 Hanna Reactor (115 VAC)

C 9800-02 Hanna Reactor (230 VAC)

HI 93754B-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 MR

Hanna Instruments C 99 series User Manual

Questions and Answers: