Digestion and Absorption of New National Standards for Ammonium Sulfate Assay
Since the release of Fertilizer Grade Ammonium Sulfate(GB/T 535-2020),there have been disruptive modifications to the various indicator requirements of its testing standards compared to the previous national standards.Not only are there significant differences in the testing methods compared to before,but there are also more diverse selection of testing instruments,and corresponding changes have been made to the technical indicators.Based on this,in the implementation process of the new national standard,the application of the new national standard in actual production is elaborated from three aspects:representativeness of operator sampling,standardization of operation,safety,speed of distillation,and length of distillation time,in order to achieve accurate measurement of nitrogen content.
representativeness of samplingoperational standardizationsecuritydistillation speeddistillation time
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