Keen Dissolved Oxygen Test Kit (100 Tests) – Water DO Test Kit

The Keen Dissolved Oxygen Test Kit (RMR-2009) is a reliable and easy-to-use chemical titration test kit designed for the precise measurement of Dissolved Oxygen (DO) levels in water. Using a modified Winkler method, this kit accurately determines DO concentration in ppm (mg/L), making it ideal for environmental monitoring, aquaculture, laboratories, and water treatment applications.This complete dissolved oxygen testing kit includes all necessary reagents and equipment required to perform the analysis. With the ability to conduct approximately 100 tests, it offers a cost-effective and dependable solution for routine water quality monitoring.Each reagent bottle is pre-prepared and clearly labeled with lot number and expiration date, ensuring traceability, accuracy, and ease of use. The simple drop counting titration method provides fast, accurate, and reliable results even for users with minimal laboratory experience.Key Features at a GlancePerforms approximately 100 Dissolved Oxygen testsMeasures aqueous Dissolved Oxygen (DO) levels quicklyMeasurement range: 0.5 ppm to 20 ppmResolution: 0.5 ppm per dropTolerance: ±0.5 ppmEasy drop counting titration methodPre-made reagents for convenient useReagents labeled with expiration date and lot numberComplete test setup includedProvides fast, easy, and accurate resultsMechanism of MeasurementThe RMR-2009 Dissolved Oxygen Test Kit uses a modified Winkler method, a well-established chemical method for determining oxygen levels in water.Step 1 – Oxygen FixationManganous ions react with dissolved oxygen in the presence of potassium hydroxide to form manganese oxide precipitate.Step 2 – Iodine FormationAfter acid is added, manganese oxide hydroxide oxidizes iodide ions to iodine. The formulation is designed to prevent nitrate interference and does not use toxic azide compounds.Step 3 – Titration ReactionThe iodine produced is proportional to the dissolved oxygen concentration and is titrated using thiosulfate solution until the iodine is reduced back to iodide ions.Chemical Reactions2Mn²⁺ O₂ 4OH⁻ → 2MnO(OH)₂MnO(OH)₂ 2I⁻ 4H⁺ → Mn²⁺ I₂ 3H₂OI₂ 2S₂O₃²⁻ → S₄O₆²⁻Significance of Dissolved Oxygen TestingThe concentration of dissolved oxygen in water is critical to maintaining healthy aquatic ecosystems and efficient water treatment systems. Adequate oxygen levels support aquatic life growth and survival in rivers, lakes, and oceans.Low oxygen levels can lead to anaerobic decomposition of organic matter, which produces harmful compounds and degrades water quality. In industrial and municipal water systems, maintaining at least 2 mg/L of dissolved oxygen helps prevent pipe corrosion and system damage.Regular monitoring with the Keen DO Test Kit ensures water quality remains within safe, effective limits.ApplicationsThe Keen Dissolved Oxygen Test Kit is widely used for:Aquaculture and fisheries monitoringFish ponds and biofloc systemsDrinking water testingEnvironmental water analysisIndustrial water treatmentBoiler water monitoringEducational and research laboratoriesPackage IncludesRMR-2009 Test Kit Box6 Bottles with Pre-prepared ReagentsSample TubeSample Collecting SyringeInstruction Manual✔ Accurate, economical, and easy to use, the Keen Dissolved Oxygen Test Kit (100 Tests) is an essential tool for reliable water quality monitoring in laboratories, aquaculture systems, and industrial water applications.