In the titration method, the indicator is added to the measurement sample drop by drop. The measured value is determined by simply counting the drops until the colour changes. The duration of the determination of the measured value is a few minutes. The number of possible analyses depends on the value to be determined. A typical consumption specification is enclosed with each product. Like the test sets according to the limit value method, the test sets according to the titration method are typically sold in the unit of measurement °dH. Test sets in °fH and ppm are also available. You can find these in our English catalogue. Otherwise, our sales team will be happy to provide you with detailed information.