Chloride Test Reagent TK - 4

PROCEDURE for test ( STEP WISE ):

1. Measure 15 ml of SAMPLE WATER in graduated TEST TUBE / CYLINDER
2. Add 1-2 drops of  RXSOL TK1 and mix with the stirring rod , If  sample turns red / PINK then follows 3^rd step otherwise if sample remains colourless proceed to step 4.
3. Add RXSOL TK2  drop by drop , mixing with the stirring rod until colour just disappears.
4. Add 3 drops of RXSOL TK3 and mix with stirring rod , the sample will turn YELLOW.
5. AddRXSOL TK4 carefully by counting drop by drop and mixing throughly until a light reddish / pink / brown colour develop.