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# copper cathode parts per million contaminants chart

### Parts per million - ppm - Engineering ToolBox

Parts per million - ppm - is commonly used as a dimensionless measure of small levels concentrations of pollutants in air water body fluids etc.. Parts per million is the molar mass volume or mass ratio between the pollutant component and the solution.

### Parts Per Million Concentration Chemistry Tutorial

Parts Per Million ppm Concentration Calculations. Question 1. 150 mL of an aqueous sodium chloride solution contains 0.0045 g NaCl. Calculate the concentration of NaCl in parts per million ppm . Write an equation representing the ppm concentration: ppm = mass solute mg ÷ volume solution L Extract the data from the question:

### Parts per Million Calculations - Google Docs

Parts Per Million Calculations. Sometimes when concentrations are really small we use parts per million to represent the concentration of solute in a given solvent. Parts per million ppm is frequently used to measure the mass of a chemical contaminants in drinking water as well as water stores such as lakes ponds and reservoirs.

### ppm: parts-per million - RapidTables.com

In water solution the concentration C in parts-per million ppm is equal to 1000 times the concentration C in grams per kilogram g/kg and equal to 1000000 times the concentration C in grams per liter g/L divided by the water solution density at temperature of 20ºC 998.2071 in kilograms per cubic meter kg/m 3 and approximately equal to .

### National Primary Drinking Water Regulations US EPA

Maximum Residual Disinfectant Level MRDL - The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants. 2 Units are in milligrams per liter mg/L unless otherwise noted. Milligrams per liter are equivalent to parts per million .

### Interpreting Drinking Water Test Results

liter mg/L or micrograms per liter µg/L . For example a water test might indi e that the water contains 6 mg/L nitrate meaning that a liter of water contains an average concentration of 6 milligrams of nitrate. Note also that one mg/L is equivalent to one part per million ppm . One µg/L equals one part per billion ppb . Coliform Bacteria