GB/T 34532-2017 "Coking Wastewater—Determination of Ammonia Nitrogen Content—Formaldehyde Method" specifies the method for determining the ammonia nitrogen content in coking wastewater using the formaldehyde method. This method is based on the reaction of ammonia with formaldehyde in a neutral medium to produce hexamethylenetetramine and an equivalent amount of acid, followed by titration of the generated acid with a standard sodium hydroxide titration solution to calculate the ammonia nitrogen content.
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 | G15 | ICS | 71.080 |
| Release Date | 2017-10-14 00:00:00 | Implementation Date | 2018-05-01 00:00:00 |