The tables given in this section may be regarded as being supplementary to those in Section 524, which gave thermodynamic and transport properties of saturated vapors, and those in Section 525 and Section 537, which gave data for vapour at various pressures. A list of symbols and conversion factors were given in Section 524 page 6.

This section provides data for every compound listed in Section 533 as a vapour at atmospheric pressure. The temperature range for these data depends on the availability of the published data and/or the limits of the prediction techniques used to supply the complete data tables.

For tables derived from equations, a maximum temperature of 600 °C was taken to ensure reliability in the predicted data, and a lower limit of 0 °C, even if this is below the melting point, to provide a reasonable range for interpolation.

Because the effect of pressure on these properties is negligible (Section 500 and Section 501), the values given will be valid at all temperatures at atmospheric pressure. However, for the real gas (not present in a mixture) the density below the normal boiling point will need adjusting to the ambient pressure for the particular conditions.

Additional data (when available from the published source) has been included for the heat capacity at constant volume c_v,g and for the speed of source U_s.