This standard specifies specific methods for the determination of free water content in monoammonium phosphoric acid and diammonium phosphoric acid by means of Carl Fischer method and vacuum oven method. The standard is applicable to the determination of moisture content in monoammonium phosphoric acid and diammonium phosphoric acid produced by various processes, especially in arbitration inspection, the use of Carl Fischer reagent containing pyridine is required. The standard lists in detail the principle, reagents and equipment of the determination, and specifies the determination steps and result processing methods, providing technical support for the accurate detection of moisture in ammonium phosphoric acid fertilizers.
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 | G20 | ICS | 65.080 |
| Release Date | 2010-06-30 00:00:00 | Implementation Date | 2011-01-01 00:00:00 |