PHOSPHATE TEST:

Phosphates (Sensitivity 0, 5 – 30 mg/l(ppm)  PO4-3 ) Method :

1) Rinse the test tube with the water to be tested and fill to the 5 ml mark.

2) Add 2 drops PO4 – A indicator and shake the test tube 10 seconds very well, then add 2 drops PO4 – B indicator and shake 30 seconds very well.

3) Compare the blue color to color reference color chart to determine concentration of orthophosphate in mg/l (ppm)

4) Color comparison must be completed within 5 minutes.

 

CHLORIDE TEST:

Chloride (Sensitivity 1 drop = 30 mg/l (ppm)) Method :

1) Rinse the test tube with the water to be tested and fill it using 5 ml injector.

2) Add 3 drops Chloride Indicator Solution and see color changes to yellow

3) Add drop by drop Silver Nitrate Solution until color changes to reddish brown.

4) Total drops of titration solution x 30 = Concentration of chloride (Cl) in mg/l(ppm)

 

ALKALINITY TEST:

  1. Rinse the test tube with the water to be tested and fill to the 5 ml mark using injector.
  2. Add 3 drops P (FF) Indicator and shake. The solution must turn pink, otherwise determine M value on step 4 th.
  3. Add alkalinity Titration Solution drop by drop till the pink color turns to colorless. Titration is completed when it turns to colorless. Reported P alkalinity is total drops of titration solutions.

1 drop TITRATION SOL = 50 ppm Phenol (p) Alkalinity.

  1. Add 3 drops MR indicator to the same test tube. The solution must turn green.
  2. Add TITRATION SOLUTION drop by drop till it turns green to grey-red, count the titration solutions drops while the test solutions color changes green to grey-red. Reported M Alkalinity is total drops of these steps.

1 drop TITRATION SOL = 50 ppm Total (M) Alkalinity

Total Alkalinity= P alkalinity+M alkalinity