This standard applies to the determination of fluoride in surface water, groundwater and industrial wastewater using the fluoride reagent Spectrophotometric method, spectrophotometry. The measurement range is 0.05mg/L to 1.80mg/L, and the determination is carried out using a 30mm Colorimetric dish. The method is based on the blue Ternary complex formed by fluoride ions with fluoride reagents and lanthanum nitrate, and the fluoride content is determined at a wavelength of 620nm. For interfering substances, pretreatment is required to ensure the accuracy of the determination.
| Status | Active |
|---|---|
| CCS | Z16 | ICS | 13.060 |
| Release Date | 1987-03-06 00:00:00 | Implementation Date | 1987-08-01 00:00:00 |