... point °C-Critical temperature , °C116.5Critical pressure ,Mpa4.88Density of saturated liquid 30 °C,(g/cm 3 )-Specific heat ... of liquid 30 °C,[KJ/(Kg °C)]-Specific heat of equipressure steam(Cp),30 °C and ... - 2. QUALITY STANDARD Index NameIndexMass fraction of R406a, % ≥99.8Mass fraction of moisture, % ≤0.002Acidity(as HCl ), % ≤0.0001Mass fraction of residue on evaporation, % ≤0 ...