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网页What is Chemical Oxygen Demand (COD)? Chemical oxygen demand (COD) is the amount of dissolved oxygen that must be present in water to oxidize chemical organic materials, like petroleum. COD is used to gauge the short-term impact wastewater effluents will have on the oxygen levels of receiving waters.

网页The term “vial” is somewhat undefined and is usually described as a small, cylindrical, and flat-bottomed container used to hold liquids. Most sample vials are Bottom: Round

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网页Home » News » COD Vials » wholesales economical 10mL chemical oxygen demand vials with round bottom Product Category 1-4mL Autosampler Vials for HPLC, UPLC, GC 16mm, 25mm Test Tubes for Water Analysis

网页They come in a variety of sizes, 2ml 10mm clear HPLC vials being ubiquitously used. Vial Volume: 1.5-2 Wheaton chemical oxygen demand vials with flat bottom-COD 16mm,

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网页Reagecon's Chemical Oxygen Demand (COD) vials 0-15,000 mg/l can be used in conjunction with the Aqualytic PC Spectro®, Aqualytic PC Compact Vario® and all Hach® Spectrophotometers that accept 16mm vials. A comparative study of the performance of Reagecon COD vials compared to Hach® COD vials has been published, see Scientific