网页COD Digestion Vials w/Hg, 0-1500mg/L, EPA-Approved, pack/100 EPA-Approved COD Digestion Vials Hg Free 0-1500mg/L, 16 x 100mm. Each box shipped with Certificate of
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网页A low-range COD concentration method was also used in some measurements. This was used for COD concentrations below 0.1 mg/mL. This method measured the absorbance of remaining dichromate ion in solution at a wavelength of 420 nm.
网页For determination of oxygen scavengers by the iron reduction method. Hach method 8140 determines carbohydrazide, diethylhydroxylamine (DEHA), hydroquinone, iso-ascorbic acid (erythorbic acid) and methylethylketoxime
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网页If using High Range Plus COD digestion reagent vials, multiply the result by 10. For the most accurate results with samples near 1500 or 15,000 mg/L COD, repeat the analysis
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网页Browse Products by Parameter: COD | Hach2415815-MY: COD Digestion Vials, Ultra Low Range, 1 to 40 mg/L COD, pk/150 Contact Hach: 1218629-MY: COD standard solution,
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网页Items with this mark may be considered hazardous under some shipping conditions. If necessary, we will change your selected shipping method to accommodate these items. For determination of low range Chemical Oxygen Demand (COD) by the Reactor Digestion method. US EPA approved for wastewater analysis using Hach Method 8000. Range: 3
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网页TThe HI93754A-25 COD kit contains 25 ready-to-use vials containing pre-measured reagents. These high quality reagents follow the EPA approved method 410.4. In this method, a heated digestion is required to oxidize organic matter in the sample. During the digestion, hexavalent chromium in the reagent is reduced to trivalent chromium.
