This standard specifies the use of N- (1-naphthyl) ethylenediamine azo Spectrophotometric method, spec-trophotometry to determine the concentration of aniline compounds in water, which is suitable for the detection of aromatic primary amine compounds in surface water, dyestuff and pharmaceutical wastewater. The method is formed by diazotization of aniline compounds with nitrite, and then coupling with N- (1-naphthyl) ethylenediamine muriatic acid salt to generate purplish dyestuff, which is determined spectrophotometrically at a wavelength of 545 nm. The measurement range is 0.03 to 1.6 mg/L. It is suitable for the detection of aniline compounds in environment monitoring and water quality analysis.
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 | 1989-11-03 00:00:00 | Implementation Date | 1990-07-01 00:00:00 |