This part of GB/T 2441 specifies the determination of the alkalinity of industrial urea by volumetric method. This section applies to the determination of the alkalinity content of urea synthesized from ammonia and carbon dioxide.
GB/T 2441.5-2010 Referenced Document
HG/T 2843 Chemical fertilezer products-standard volumetrie,standard,reagent and indicator solutions for chemical analysis
GB/T 2441.5-2010 history
2010GB/T 2441.5-2010 Determination of urea-Part 5: Alkalinity-Titrimetric method
2001GB/T 2441.5-2001 Determination of Urea Determination of alkalinity titrimetric method