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POCKET COLORIMETER™ II ANALYSIS SYSTEMS
INSTRUCTION MANUAL Bromine (Br) Chlorine Dioxide (ClO2) Chlorine (Cl2) / pH

© Hach Company, 2004–2006. All rights reserved. Printed in the U.S.A.

te/dk 12/06 5ed

Important Note
This manual is intended for use with the following Pocket Colorimeter™ II instruments: Bromine Chlorine Dioxide Chlorine / pH Cat. No. 59530-01 Cat. No.59530-51 Cat. No. 59530-12

The Pocket Colorimeter™ II instruments listed above are not interchangeable.

1—2

Table of Contents
Safety Precautions ............................................................................................... 1—7
Laboratory Safety ............................................................................................... 1—7 Use of HazardInformation................................................................................ 1—7 Precautionary Labels.......................................................................................... 1—8 Specifications ......................................................................................................... 1—9 Instrument Keys and Display.......................................................................... 1—13 Instrument Cap Cord ......................................................................................... 1—14

Bromine, Total, LR .............................................................................................. 1—17
Measuring Hints............................................................................................... 1—17 Sampling and Storage...................................................................................... 1—24 Accuracy Check ................................................................................................ 1—24 Interferences...................................................................................................... 1—26 MethodPerformance........................................................................................ 1—28

Bromine, Total, HR ............................................................................................. 1—29
Measuring Hints ............................................................................................... 1—29 Sampling andStorage...................................................................................... 1—33 Accuracy Check ................................................................................................ 1—33 Interferences...................................................................................................... 1—35

1—3

Table of Contents,

continued

Method Performance........................................................................................1—37 Summary of Method.........................................................................................1—37 Replacement Parts (LR and HR) ......................................................................1—37

Chlorine, Free and Total, HR ..........................................................................1—41
Measuring Hints................................................................................................1—41 Accuracy Check.................................................................................................1—46 Interferences ......................................................................................................1—48 Spec√ Secondary Standards............................................................................1—51 Method Performance ........................................................................................1—51 Summary of Method.........................................................................................1—51 Replacement Parts.............................................................................................1—52

Chlorine Dioxide...
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