This part of GB/T 10209 specifies the determination of the total nitrogen content of monoammonium phosphate and diammonium phosphate by titration after distillation. This part is applicable to the determination of total nitrogen content in monoammonium phosphate and diammonium phosphate produced by various processes.
GB/T 10209.1-2008 Referenced Document
GB/T 2441.1-2008 Determination of urea.Part 1:Total nitrogen content
HG/T 2843 Chemical fertilezer products-standard volumetrie,standard,reagent and indicator solutions for chemical analysis
GB/T 10209.1-2008 history
2008GB/T 10209.1-2008 Determination of monoammonium phosphate and diammonium phosphate.Part 1:Total nitrogen content
2001GB/T 10209.1-2001 Determination of total nitrogen content for monoammonium phosphate and diammonium phosphate(Titrimetric method after distillation)