[tag] WaterSaturationTemperatureIAPWSIF97Region4

The water saturation temperature is calculated by pressure in IAPWSIF97 region4. Note: (1) The temperature unit is K, and pressure unit is Pa. (2) According to the IAPWS-IF97: http://www.iapws.org/relguide/IF97-Rev.pdf, the vapor-liquid saturation line in region4 only covers the pressure range between 611.213 Pa and 22.064 MPa.

Additional info

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Used in the following test data files

Used in no end-to-end test cases.