This standard specifies a test method for the determination of fluorine content in tea leaves. Applicable to the determination of fluorine content in tea leaves. The method summary includes measurement using a fluorine Ion selective electrode, the potential of which changes with the activity of fluoride ions in the solution, conforming to the Nernst equation. Reagents and solutions are prepared in accordance with relevant standards, including perchloric acid, fluoride ion standard stock solution and perchloric acid solution.
| Status | Active |
|---|---|
| CCS | (X55) 茶叶制品 | ICS | (67.140.10) 茶 |
| Release Date | 2004-08-25 00:00:00 | Implementation Date | 2004-09-01 00:00:00 |