HACH LANGE LCK 303 Mode D'emploi page 18

Operation
12. The result is displayed in mg/l Ammonium-Nitrogen/Ammonium.
Note: In case the Ammonium-Nitrogen/Ammonium concentration is out of the selected
measuring range the value for the lowest or highest concentration is displayed and
flashes. Repeat the test using the appropriate LCK Cuvette Test measuring range or
dilute your sample.
Note: A new blank measurement should be performed prior to each individual test series.
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