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A[tarhment A (cont.) <br />WATER OUALJT'Y -SUGGESTED METHODS OF ANALYSIS <br />CHEMICAL PARAMETERS <br />UNITS SAMPLED <br />MEDIUM" <br />METHOD OF ANALYSIS" <br />pH (field) pH Units G,S field pH meter <br />Spedfic Conductance (field) uhmNcm <br />@ 25°C G,S Wheatstone Bridge (Spedfic Conductance Meter) <br />Temperature (field) °C S Feld thermometer <br />Total Dissolved Sdids myl G,S Fltrete evaporation; calculation <br />Total Suspended Shcds mgA S Glass fiber filtratbn 703° - 105° <br />Oil and Grease mgll S Liquid-liquid extraction with trichlorotrifiuorcethane <br />Sodium Adsorption Ratio -- S Calculation <br />Dissovled Oxygen (field) mgA as O, S Membrane electrode <br />Bicarbonate (HCO-~) mgA G,S Titration; electrometric; manual or automated method -methyl <br />orange atomic absorption <br />Calcium (Ca") mg/I G,S EDTA titration <br />Carbonate (CO-~ ~ mgll G Titration; electrometric; manual or automated method -methyl <br />orange <br />Chloride (CI-) mgA G,S Silver nitrate; mercuric nitrate; automated colorimetric- <br />ferrigganide <br />Magnesium (Mg's) mg/I G,S Atomic absorption; gravlmetric <br />Ammonia (NHS mgA G Automated cobrime[rk phenate; disUllalion . <br />Nitrate-Nitrite ngA G,S Automated (cadmium reduction); automated (hydrazine <br />reduction) <br />Phosphate (PO,' as P) ngll G,S Direct single reagent; automated single reagent or stannous <br />chbride <br />Sodium (Na') mg/I G,S Fame photometric; etomk absorption <br />Sulfate (SO-~) mryl G,S Gravimetrk; trirbidimetric; automated colorimetric -barium <br />chbranilate <br />Aluminum (A~ mg/I S Atomic absorption <br />Aresenic (AS) mg/1 G,S Atomic absorption <br />A-d <br />