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Physics

Thermodynamics

Tools and Instruments

Keyword

Organizational Unit

Dew-point measurements for water in compressed gases

This project has been completed. The paper reporting the results is provided here. The NIST Thermodynamic Metrology Group (TMG) used its standard gravimetric

Leak Artifacts

Leak artifacts are calibrated in the range 1 x 10 -6 to 1 x 10 -13 mol/s (2 x 10 -2 to 2 x 10 -9 std. cm 3/s at 0 °C). The calibration can be performed directly

Low Pressure Gauges

NIST has developed best-in-the-world primary standard pressure measurement capabilities for pressures spanning the range of 0.01 Pa to 360 kPa through the

Piston gauges and pressure transducers

Piston gauges are used to calibrate customer piston gauges and pressure sensing devices. Piston gauges are calibrated via a direct comparison to another piston

Vacuum Gauges

Most calibrations of vacuum gauges are based on a known gas flow rate that is generated by one of two flow meters that operate at constant pressure. The "piston