This standard is applicable to the determination of iron (ⅱ, ⅲ) cyanide complexes in wastewater discharged from pyrotechnics production plants. Spectrophotometric method, spectrophotometry of ferric trichloride is used. The measurement range is 2~ 10 mg/L, and the minimum detected concentration is 0.4 mg/L. In acidic medium, the ferricyanide complex reacts with ferric trichloride to form blue ferrocyanide, which is determined photometrically at 700 nm wavelength. The method is simple to operate, suitable for routine monitoring of ferricyanide complexes in industrial wastewater, and provides a reliable basis for environment protection and industrial safety.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | Z16 | ICS | |
| Release Date | 1992-11-23 00:00:00 | Implementation Date | 1993-09-01 00:00:00 |