Tablet Count Method:
In the tablet count method, the liquid titration solution and indicator are replaced by tablet reagents. A specified number of tablets are added to a defined sample volume until a color change takes place. The concentration of the parameter being measured is calculated from the number of tablets required. The measuring range can be expanded by varying the sample volume.
The speed test is based on reverse titration. After adding a reagent tablet to a calibrated test tube, the water sample is added slowly until the color of the solution changes ( for instance, from red to blue). The user can then read the result from the liquid level.
A Yes/No test can determine if a specific ingredient is present in the water and/or if its concentration is higher or lower than a defined level.
A two-section calibrated tube is filled with sample and a reagent tablet is added. The reagent creates a level of turbidity that is proportional to the concentration of the parameter being measured. The inner tube, which has a black dot on its base, is lowered until the dot is obscured by the turbidity. The result is read from the water level in the inner tube.