| Technique | Property | Temperatures | Maximum Pressure | Uncertainty* |
|---|---|---|---|---|
| Single-sinker Magnetic Suspension Densimeter | Gas Density | (250 to 400) K | 20 MPa | (0.02 to 0.4) % |
| Spherical Acoustic Resonator | Speed of Sound in Gases | (200 to 475) K | 20 MPa | 0.02 % |
| Flow Calorimeter | Isobaric Heat Capacity | (240 to 420) K | 25 MPa | 0.4 % |
| Vibrating Tube Densimeter | Density | (240 to 420) K | 140 MPa | 0.1 % |
| Flow Calorimeter | Excess Enthalpy | (240 to 420) K | 25 MPa | 1 % |
| Falling Body Viscometer | Viscosity | (240 to 475) K | 140 MPa | 3 % |
| Vibrating Wire Viscometer | Viscosity | (200 to 475) K | 140 MPa | 1.5 % |
| Static Isochoric Total Pressure VLE Cell (Van Ness) | Phase Equilibrium | (240 to 400) K | 10 MPa | 0.001 in liquid mole fraction |
| Cylindrical Microwave Resonator | Phase Equilibrium | (200 to 360) K | 50 MPa | 0.1 % in pressure |
| * Overall Expanded Uncertainty (k = 2) |
