Specification Test Results

• Assay (HOC(COOH)(CH₂COOH)₂·H₂O) (by acidimetry):
  99.0 - 102.0 %
• Insoluble Matter:
  ≤0.005 %
• Residue on Ignition:
  ≤0.02 %
• Chloride (Cl):
  ≤0.001 %
• Oxalate (C₂O₄):
  Passes Test
• Phosphate (PO₄):
  ≤0.001 %
• Sulfur Compounds (as SO₄):
  ≤0.002 %
• Substances Carbonizable by Hot H₂SO₄:
  Passes Test
• Trace Impurities - Iron (Fe):
  ≤2.0 ppm
• Trace Impurities - Lead (Pb):
  ≤2.000 ppm