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E A mercury-free small scale (2.5 ml) flask digestion procedure using chromium(III) potassium sulphate and silver nitrate solutions. Throughout the booklet, the term chemical oxygen demand (COD) is used to express the amount of oxygen consumed during oxidation of a sample with hot acid dichromate
042 - Chemical Oxygen Demand (COD) - 1000 mg/l, 125 ml One 1,000 mg/L standard preserved with H2SO4 in an amber glass bottle. Analytes: COD: 1242 - Demand One 15 mL screw cap vial yields up to 2 liters after dilution. Analytes: BOD, COD, DOC, TOC: 1354 - Demand One 15 mL screw cap vial yields up to 2 liters after dilution. Analytes: BOD, COD
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Hold the vial at an angle of 45 degrees. Use a clean pipet to add 2.00 mL of sample to the vial. For 250-15,000 mg/L vials: Use a TenSette Pipet to add 0.20 mL of sample to the vial. 2 Oxygen Demand, Chemical, Dichromate Method (multi-range: 40.0, 150, 1500, 15,000 mg/L) 3.
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Biological Oxygen Demand Bottles. Bottles for BOD (biochemical oxygen demand) are used for the five-day BOD or BOD5 test process that incubates samples at less than 20°C (68°F) to determine the amount of organic compounds present. Bottles for BOD are designed so that a solution filling the bottle will push all air out from the bottle.
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Chemical Oxygen Demand (Titrimetric, High Level For Saline Waters) ANALYTE: COD Chemical Oxygen Demand . INSTRUMENTATION: Titration . STORET No. 00340 . 1.0 Scope and Application 1.1 When the chloride level exceeds 1000 mg/L the minimum accepted value for the COD will be 250 mg/L. COD levels which fall below this value are highly
