Sulphite, iodometric titration method
During testing, when colour change is achieved, under careful conditions – usually using a burette – the reagent is added, drop by drop, until the solution turns to the required substance. The user will then count how many drops of reagent were used to achieve the change. The number of drops used will determine the chemical concentration and results can be found in the manual included.
Range: 0 to 20.0; 0 to 200 mg/L
Reagent kit for 100 tests (Na2SO3)