GB/T 7490-1987 is a water quality testing standard. Volatile phenols are determined by 4-aminoantipyrine Spectrophotometric method, spec-trophotometry after distillation. Volatile phenols are highly toxic and exist in water bodies such as industrial wastewater, endangering the environment and human health. The standard details the operation steps of water sample distillation to separate volatile phenols, then react with 4-aminoantipyrine to develop color, and use spectrophotometer to measure Absorbance to calculate the content. The method is standardized and the results are reliable. It is suitable for a variety of water samples, providing key technical means for water quality monitoring and pollution control, and helping to ensure the safety of the water environment.
| Status | Active | ||
|---|---|---|---|
| CCS | Z16 | ICS | 13.060 |
| Release Date | 1987-03-06 00:00:00 | Implementation Date | 1987-08-01 00:00:00 |
