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Hach DR/850 - User Manual

Hach DR/850
460 pages
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48450-22
DR/850
COLORIMETER
PROCEDURES MANUAL
© Hach Company, 1997- 2007, 2013. All rights reserved. Printed in the U.S.A. te/dk 03/13 7ed

Table of Contents

Other manuals for Hach DR/850

Questions and Answers

  • K
    Kelli PayneAug 3, 2025
    How to fix Measurement offset error on Hach Measuring Instruments?
    • M
      Michael BaldwinAug 3, 2025
      If your Hach Measuring Instruments shows a Measurement offset error, ensure that the instrument light shield (cap) is correctly installed.
  • S
    Sarah BrownAug 14, 2025
    What to do if I get a Measurement battery error on Hach Measuring Instruments?
    • R
      Ryan TaylorAug 14, 2025
      If you're getting a Measurement battery error on your Hach Measuring Instruments, the solution is to replace the instrument batteries.
  • T
    Terrance RodriguezAug 23, 2025
    What to do if Hach Measuring Instruments shows Measurement over-range error?
    • R
      Ricky GrayAug 23, 2025
      If your Hach Measuring Instruments displays a Measurement over-range error, first, make sure the instrument cap is properly installed. If the issue persists, contact the Hach Instrument Service Department.

Summary

Section 1 Chemical Analysis Information

Sample Collection, Preservation and Storage

Provides guidance on correct sampling and storage for accurate testing, including container types and holding times.

Accuracy and Precision

Explains accuracy and precision of test results and how to improve them using Standard Additions.

Section 2 Sample Pretreatment

Digestion

Details procedures requiring sample digestion to break down substances for analysis.

Section 3 Waste Management and Safety

Waste Management

Provides guidelines for laboratory waste management, assisting in compliance with USEPA regulations.

Safety

Covers general safety practices, protective equipment, and first aid for laboratory procedures.

Section 4 Procedures

Hach DR/850 Specifications

General IconGeneral
TypeColorimeter
DetectorSilicon Photodiode
Storage Temperature-20 to 60 °C
Measurement ModesAbsorbance, Transmittance, Concentration
Photometric Accuracy± 0.005 Abs @ 1.0 Abs
Resolution0.001 A
DisplayLCD
Data Storage50 data points

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