1.1 This method covers the determination of chemical oxygen demand (COD) in ground and surface waters, domestic and industrial wastes. 1.2 The applicable range is 3-900 mg/L.

Scope and Application: For water, wastewater and seawater; digestion is required; USEPA Approved** for wastewater analyses. The estimated detection limit for program number 2710 is 1.1 mg/L COD. for this method as described in “Oxygen Demand, Chemical, Digestion Procedure” which precedes the COD colorimetric procedures. under HACH PROGRAM.

COD Chemical Oxygen Demand . INSTRUMENTATION: Titration . STORET No. 00340 . 1.0 Scope and Application 1.1 When the chloride level exceeds 1000 mg/L the minimum accepted value for the COD will be 250 mg/L. COD levels which fall below this value are highly questionable because of the high chloride correction which must be made.

COD ChemSOP 7.01 Revision 1 Page 1 of 5 1 1 PRINCIPLE OF METHOD The Chemical Oxygen Demand (COD) test is used widely to estimate the amount of organic matter in water and wastewater. It is a measurement of the oxygen equivalent of the materials present in the wastewater that are subject to oxidation

https://epd.georgia.gov/about-us/epd-laboratory-operations. Printed copies of this SOP will contain a watermark indicating the copy is an uncontrolled copy. 1 Scope and Application 1.1 This method covers the determination of COD in surface waters, domestic and industrial wastes. The COD method determines the quantity of oxygen required

The results in mg/L COD are defined as the milligrams of O2 consumed per liter of sample under the conditions of this procedure. The sample is heated for 2 hours with

Scope and Application: For water, wastewater and seawater; digestion required; 0–1500 mg/L range is USEPA Approved** for wastewater analyses. The detection limit is 3 mg/L or 30 mg/L COD for the 0–1500 mg/L and the 0–15,000 mg/L range, respectively.

The chemical oxygen demand (COD) determines the amount of oxygen required for chemical oxidation of organic matter using a strong chemical oxidant, such as, potassium bichromate under reflux conditions. This test is widely used to determine: a) Degree of pollution in water bodies and their self purification capacity, b) Efficiency of treatment ...

Chemical Oxygen Demand (COD) measures the oxygen equivalent of that portion of the organic matter in a sample that is easily oxidised by a strong chemical oxidant. It is an important and common parameter to measure the amount of organic compounds in streams, industrial waste and in operational control of wastewater treatment plants.

Chemical Oxygen Demand (COD). Equipment Needed • One 300 mL bottle per dilution, with stopper and cap, • Graduated cylinder for volumes over 25 mL, • Measuring pipet for volumes under 25 mL, • Prepared dilution water, • Dissolved Oxygen meter with stirrer • Bench sheet to record the dissolved oxygen in each bottle.