CERTIFICATE OF ANALYSIS Product: Methylene Chloride No.ï¼?NBJHJL-11-J-021 Sampling date 2-Feb-2023 Sample source Drums Analysis date 2-Feb-2023 Executive criteria HG/T 4117-2008 Batch No. 024230201 Quantity 21,600kg Manufacturing date 1-Feb-23 Expiry date 1-Feb-24 Description Technical specification Result Top quality High quality Qualified Appearance Colorless and clear liquid Conform Purity, % 99.90 99.50 99.20 99.99 Moisture, % 0.010 0.020 0.030 0.0019 Acidity (as HCL), % 0.0004 0.0004 0.0008 0.0000 Chroma APHA (Pt-Co) 10 10 10 5 Mass fraction of evaporated residue % 0.0005 0.0005 0.0010 0.0001 Conclusion: Meet the requirements of Top quality