This standard specifies the method for determination of free acid content of imported and exported chemical fertilizers. This standard applies to ammonium sulfate, ammonium nitrate, potassium sulfate, ammonium chloride, three-material superphosphate, etc.
SN/T 0736.10-1999 history
2013SN/T 0736.10-2013 Test method of import and export fertilizers.Part 10:Determination of free acid
1999SN/T 0736.10-1999 Chemical analysis of fertilizers for import and export.Determination of free acid content