Palintest Chemical Oxygen Demand (COD) Tubetests - Containing Mercury for high Chloride 10 - 1000 mg/L 02

Sale price£83.90

COD (2M), Photometer Tubetests, 10 - 1000 mg/L 02

25 Tests per pack


Chemical Oxygen Demand Photometer Reagents (2M). Contains Mercury - for high chloride samples. COD Tubetests work with Palintest Multiparameter Photometers and the COD Laboratory Set. (Please note these items will incur a hazardous delivery charge)


Chemical oxygen demand (COD) is a vital test for assessing the quality of effluents and waste waters prior to discharge. The COD test predicts the oxygen requirement of the effluent and is used for the monitoring and control of discharges, and for assessing treatment plant performance. The standard test for COD involves digesting the sample with strong sulphuric acid solution in the presence of chromium and silver salts. These potentially hazardous chemicals clearly need to be handled with extreme care. The Palintest COD Tubetests system offers a method which is both practical and convenient. The reagents are supplied premixed keeping potentially hazardous chemicals to a minimum. The test is simply carried out by adding the sample to the tube, closing the cap and then digesting for two hours at 150°C. The tubes are then cooled and the test colour measured using a Palintest Photometer. The reagent formulations are based on those specified in recognised international standard methods and meet the requirements of conformity testing against national and international standards.


 

 

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