This standard specifies the use of p-dimethylaminobenzaldehyde Spectrophotometric method, spec-trophotometry for the determination of monomethylhydrazine in surface water and aerospace industry wastewater. This method is suitable for water samples with a determination range of 0.02 to 0.80 mg/L, and for water samples with a content higher than 0.80 mg/L, it can be determined after dilution. Under acidic conditions, monomethylhydrazine reacts with p-dimethylaminobenzaldehyde to form a yellow condensate, and its concentration is determined by spectrophotometry at 470 nm. This method is suitable for water quality monitoring and the detection of industrial wastewater.
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 | Z23 | ICS | |
| Release Date | 1993-05-22 00:00:00 | Implementation Date | 1993-12-01 00:00:00 |
