... : 0.0004% max. 4) Moisture: 0.008% max 5)Chroma (pt-co): 10 max Methylene chloride / Dichloromethane, SGS test-high purity ... .Specific Gravity/Density: 1.33 (Water=1) ItemExcellent GradeColor(APHA),Pt-Co10Acidity(HCl),%≤0.0004Moisture,%≤0.006Purity,%≥99.99Residue after evaporation ...