This International Standard specifies a method for the determination of sulfur compounds, by reduction and titrimetry, in ammonium nitrate for industrial use, applicable to products having a content of sulfur compounds, expressed as S04, greater than or equal to 0.000 5 % (m/m).
NBN T 03-054-1979 history
1979NBN T 03-054-1979 Ammonium nitrate for industrial use - Determination of content of sulphur compounds - Method by reduction and titrimetry