Specification Test Results

• Appearance:
  White Crystalline powder
• Titration Iodimetric:
  ≥58.5 % (SO2)
• Chloride (Cl):
  ≤200 ppm
• Iron (Fe):
  ≤20 ppm
• Heavy metals (as Pb):
  ≤10 ppm
• Insoluble matter:
  ≤0.005 %