Specification Test Results

• Assay (C₄H₈O) (by GC, corrected for water):
  ≥99.8 %
• Peroxide (as H₂O₂):
  ≤0.015 %
• Residue after Evaporation:
  ≤5 ppm
• Water (H₂O)(by KF, coulometric):
  ≤0.03 %
• Optical Absorbance (1-cm path vs water) - 212 nm:
  ≤1.00
• Optical Absorbance (1-cm path vs water) - 225 nm:
  ≤0.50
• Optical Absorbance (1-cm path vs water) - 250 nm:
  ≤0.17
• Optical Absorbance (1-cm path vs water) - 300 nm:
  ≤0.01