Transcription of Chlorine Testing DPD Method - Hawaii Department of Health
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Chlorine Testing DPD Method - Hawaii Department of Health
Chlorine RESIDUAL Testing FOR DRINKING WATER SYSTEMS USING DPD COLORIMETRIC TEST KITSINTRODUCTION3/6/2017 Chlorine Residual Testing The one chemical analysis that operators/samplers in all public water systems perform. Water and wastewater operators perform it. How do you make sure you are getting accurate and reliable results? State must approve the use of DPD colorimetric test kits to measure residual concentrations of Chlorine , chloramines, and Chlorine dioxide. 3/6/2017 DPD Colorimetric Method - Overview Colorimetric Analysis The use of a colored reagent to determine the concentration of a contaminant This is a colorimetric version of the DPD Method DPD = N,N-diethyl-p-phenylenediamine Method most used by water operators (it is relatively easy to perform)3/6/2017 DPD Colorimetric Method While it is a simple Method , it is important to perform the tests properly. Too often it seems that operators hurry and take shortcuts. This leads to inaccurate and unreliable Systems A quality system should be in place to ensure the quality and reliability of your results.
Mar 06, 2017 · • Quality Policy Statement • Organizational Structure • Staff Responsibilities • Analyst training and performance • Tests performed by the laboratory • Handling and receipt of samples • Sample control and documentation • Traceability of Measurement • Major Equipment, Instrumentation, and Reference Standards Used • Standard ...
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