DPD-50TITRAMETRICWATER AND WASTEWATERFAS-DPD CHLORINE DROP TEST KITPRINCIPLEThis test is an adaptation of procedure 408D in StandardMethodsfortheExaminationofWaterandWastewater(15th ed., 1980).This procedure yields results equivalent to other recommended tests including the iodometric-amperometrictitration procedure (procedure 409C,Standard Methods, 14th ed.). It allows for the determination of FAC (freeavailable chlorine) and TAC (total available chlorine).The dropper tip closure supplied with the R501 FAS titrant is specifically designed to dispense 1/25ml. of titrantper drop and is a low cost substitute for the burrette. One drop of FAS titrant is equivalent to 0.2ppm aschlorine.THE ANALYST SHOULD BE AWARE THAT THE ANALYSIS MAY BE SUBJECT TO INTERFERENCESFROM BOTH OXIDIZING AND REDUCING AGENTS PRESENT IN THE SAMPLE.KIT COMPONENTS1-R5012 oz. droptip FAS titrant1-R50210 gm. DPD powder and buffer1-R459A15 gm. potassium iodide powder2-No. 33.2 gm. scoop1-No. 30/No. 8sample tube1-set of instructions1-storage case17
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