Product Short Description: TK 8 addition will turn sample colour to BLUISH-GREEN. Product Description: Pl. refer this link for more details : www.rxmarine.com/Alkalinity-test-kit PROCEDURE for m-ALKALINITY test ( STEP WISE ) 1.1 >> Measure 10 ml of SAMPLE WATER in graduated TEST TUBE / CYLINDER 1.2 >> Add 2-3 drops of RXSOL TK8 and mix with stirring rod , the sample will turn to BLUISH-GREEN . 1.3 >> Add RXSOL TK9 carefully by counting drop by drop and mixing throughly until a light reddish (salmon) pink colour develop. RESULT : Each DROPS is equivalent to 25 PPM of m- Alkalinity m-Alkalinity VALUE = 25 X ( Total Number of DROPS of TK9 , during 1.3 step ) C.) PROCEDURE for TOTAL ALKALINITY ( VALUE of A + VALUE of B ) 2.1 Measure 10 ml of SAMPLE WATER in graduated TEST TUBE / CYLINDER 2.2 Add 1-2 drops of RXSOL TK7 and mix with the stirring rod , If sample turns red / PINK ( which indicates presence of p-Alkalinity ) then follows 3rd step otherwise if sample remains colourless ( Record p-Alkalinity = 0 ) then proceed to STEP- 4. 2.3 Add RXSOL TK9 drop by drop ( by counting ) , mixing with the stirring rod until colour just disappears. Each drop is equivalent to 15 ppm of p-Alkalinity , expressed as CaCO3 2.4 Add 2-3 drops of RXSOL TK8 and mix with stirring rod , the sample will turn to BLUISH-GREEN . 2.5 AddRXSOL TK9 carefully by counting drop by drop and mixing throughly until a light reddish ( salmon ) pink colour develop. RESULT Each DROPS is equivalent to 25 PPM of Alkalinity NOTE p-Alkalinity ppm CaCO3VALUE = 25 X ( Total Number of DROPS of TK9 , during 2.3 step ) = X ( Say ) m-Alkalinity ppm CaCO3VALUE = 25 X ( Total Number of DROPS of TK9 , during 2.5 step ) = Y ( Say ) Total Alkalinity ppm CaCO3VALUE = X+Y