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How do you ensure the sample analyzed is representative of the sample collection point? The "Sample Collection and Storage" section of the Hach Method Document is a great first place to check! Sample preservation often requires volume additions for pH adjustment. These additions cause a small dilution of the sample that should be corrected for in the results. Learn more tricks like this in our recent webinar. #Hach #Webinar #LabSamples #MethodDocument

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