... specifications: DescriptionQ/JHGS 09-2004 Top Quality Regular Quality Mass fraction of chlorodifluoromethane, % ≥99.9099.6Moisture, % ≤0.00100.0020Acidity (as HCl ... ), % ≤0.000010.0001Mass fraction of evaporated residue, % ≤0.01Determination of chlorides (Cl-)PassVolume ...