- Only one test to determine the two values (free and total SO2).
- Mesurement of the sample and the reagents with a dosing cylinder.
- Accurate titration with an automatic self-zeroing burette.
- Stable solutions over several months.
This kit offers all the necessary instruments for testing in a perfectly organized case. It includes a 25ml automatic self-zeroing burette, a stand, a dosing cylinder, an Erlenmeyer flask, reagents, and a standard solution in flexible flask. The plastic case facilitates the transportation and oganization of the instruments and their protection when they are not in use.
The SO2 is completely released in acid medium and titrated with the standard iodide/iodate solution in the presence of a starch indicator. The starch indicator changes colors to give the result of the test. The free SO2 and the total SO2 are successively determined by the iodide/iodate solution stable over the time (KIKIO3), that produces the iodine specifically for the titration. All the volumes are measured with a dosing cylinder.