{"product_id":"hanna-instruments-hi-94754b-25-cod-medium-range-reagents-epa-approved-dichromate-method-with-barcode","title":"Hanna Instruments HI-94754B-25 COD Medium Range Reagents,  EPA approved Dichromate Method with Barcode","description":"\u003cp\u003eCOD medium range EPA approved Dichromate Method. 25 tests with barcode.\u003c\/p\u003e\u003cp\u003eThe HI-94754B-25 is a box of 25 reagent vials for COD, medium range with barcode.\u003c\/p\u003e \u003cp\u003eAdaptation of the EPA 410.4 approved method for the COD determination on surface water and wastewaters. Range: 0 to 1500mg\/L .\u003c\/p\u003e \u003ch3\u003eEight kits for all testing requirements\u003c\/h3\u003e \u003cp\u003eCOD levels vary depending on the application and process measuring points. Hanna offers reagents to cover four separate ranges:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLow range: 0 to 150 mg\/L O\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/li\u003e \u003cli\u003eMedium range: 0 to 1500 mg\/L O\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/li\u003e \u003cli\u003eHigh range: 0 to 15000 mg\/L O\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/li\u003e \u003cli\u003eUltra High range: 0 to 60000 mg\/L O\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003ePre-dosed vials\u003c\/h3\u003e \u003cp\u003eEach Hanna vial contains the exact amount of pre-dosed reagent needed for the analysis. The operator just needs to add a small quantity of the sample.\u003c\/p\u003e \u003ch3\u003eSafe reagents\u003c\/h3\u003e \u003cp\u003eHanna COD reagents are safe for operators and the environment. Vials and caps have been designed to avoid accidental reagent spills. Due to the pre-dosed reagents, the amount of chemicals and handling time is minimised.\u003c\/p\u003e \u003ch3\u003eQuick and accurate measurements\u003c\/h3\u003e \u003cp\u003eWith pre-dosed vials, test preparation time is dramatically reduced. There is no time-consuming reagent preparation procedure or glassware cleaning.\u003c\/p\u003e \u003ch3\u003eCompact packaging\u003c\/h3\u003e \u003cp\u003eEach set of COD Vials is stored in fully recyclable, sustainable, compact plastic packaging. The ergonomic box design reduces the volume of collateral waste and required storage space.\u003c\/p\u003e \u003cp\u003eThe procedure guide is printed on the inside of the box lid.\u003c\/p\u003e \u003ch3\u003eAbout Chemical Oxygen Demand (COD)\u003c\/h3\u003e \u003cp\u003eChemical Oxygen Demand is a measure of biologically available and inert organic matter that is susceptible to oxidation by a strong oxidising agent.\u003c\/p\u003e \u003cp\u003eThe Hanna COD method is based on the well-established closed dichromate-reflux colorimetric method. The colorimetric measurement of COD is faster and easier to perform than the titrimetric analysis; additional regents are not required.\u003c\/p\u003e \u003cp\u003eThe sample is added to the reagent vial and digested under closed reflux conditions and allowed to cool before measurement is taken. Reference standards can be made using potassium hydrogen phthalate (KHP), 1mg of KHP is equal to 1.175 mg COD.\u003c\/p\u003e \u003cp\u003eThe advantage of using this method includes certifiable results as well as high accuracy.\u003c\/p\u003e \u003ch3\u003eAbout the application\u003c\/h3\u003e \u003cp\u003eCOD is used as a measurement of pollutants. It is normally measured in both municipal and industrial wastewater treatment plants and gives an indication of the efficiency of the treatment process.\u003c\/p\u003e \u003cp\u003eCOD can be measured on both influent and effluent water. The efficiency of the treatment process is normally expressed as COD removal, measured as a percentage of the organic matter purified during the cycle.\u003c\/p\u003e \u003cp\u003eCOD also has applications in power plant operations, chemical manufacturing, commercial laundries, pulp and paper mills, agriculture and animal waste runoff, environmental studies and general education.\u003c\/p\u003e \u003cp\u003eHanna equipment can be used in the laboratory or for on-site testing. The measurement procedure has been designed for ease of use by personnel at any skill level.\u003c\/p\u003e \u003ch3\u003eMethods\u003c\/h3\u003e \u003cp\u003eHanna’s COD reagents have been developed in accordance with Standard Methods 5220D, US EPA 410.4 and ISO 15705.\u003c\/p\u003e \u003ch3\u003eWhy choose Hanna’s COD reagents\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAll scales start from 0 ppm so with each kit, it is possible to cover even the low scale.\u003c\/li\u003e \u003cli\u003eAll reagents include a certificate of analysis.\u003c\/li\u003e \u003cli\u003eHigh resistance to chlorides – up to 2000 ppm for low and medium range vials; up to 20000 ppm for high and Ultra high vials\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSafety warnings\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCorrosive\u003c\/li\u003e \u003cli\u003eSerious Health Hazard\u003c\/li\u003e \u003cli\u003eToxicity\u003c\/li\u003e \u003cli\u003eHazardous to the Environment\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003ci\u003e\u003cspan\u003eRegulatory: This product contains an explosive precursor according to Regulation (EC) No 2019\/1148, all customers must complete a declaration before delivery.\u003c\/span\u003e\u003c\/i\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e0 to 1500 mg\/L (as O2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±15 mg\/L or ±3% of reading at 25˚C, whichever is greater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e610nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTests\u003c\/td\u003e\n\u003ctd\u003e25 (13mm Vial), with Barcode.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eDownloads\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/www.hannainstruments.co.uk\/modules\/teapotknowledgehub\/uploads\/en_hi94754b0_clp_7-68bee5af7397c.pdf\" target=\"_blank\"\u003eSafety Data Sheet - HI-94754B COD Medium Range with Bar Code (PDF)\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640101020021,"sku":"HI-94754B-25","price":69.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-94754b-25-cod-medium-range-reagents-epa-approved-dichromate-method-with-bar-code.jpg?v=1791581311","url":"https:\/\/testallwater.co.uk\/products\/hanna-instruments-hi-94754b-25-cod-medium-range-reagents-epa-approved-dichromate-method-with-barcode","provider":"Test All Water","version":"1.0","type":"link"}