Transcription of SC400 Colorimeter - orbeco.com
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SC400 Colorimeter - orbeco.com
Photometer-SystemSiO2 Instruction ManualDEGBFRITESB edienungsanleitungIstruzioni d'usoMode d'emploiInstruccionesSeite 3 17 Page 19 33 Page 35 49 Pagina 51 65P gina 67 81SC400 Colorimeter CODI nstruction Manual2SC400-00, COD 03/2009 RequirementsMethod: Oxygen Demand, ChemicalMethod Description: The sample is heated at 150o C for two hours in the presence of a potassium dichromate, which is a strong oxidizing agent. Organic compounds in the sample are oxidized, reducing the dichromate ion (Cr2O72 ) to the green chromic ion (Cr3+). In the Low Range (LR) Test (0-150 mg/L), the amount of remaining Cr6+ is measured; In the Mid Range (MR) (0-1,500 mg/L) or (HR) (0-15,000 mg/L), the amount of Cr3+ produced is measured. The results are measured as the amount of oxygen (O2) consumed per liter of water sample.
2 SC400-00, COD 03/2009 Requirements Method: Oxygen Demand, Chemical Method Description: The sample is heated at 150o C for two hours in the presence of a potassium dichromate, which is a strong oxidizing agent. Organic compounds in the
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