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Metrology

Flow metrology & rheology

Tools and Instruments

Keyword

Organizational Unit

Gas Flow Standards

Summary NIST's gas flow meter calibrations support a wide range of industries that require low-uncertainty, SI-traceable measurements. These industries include

Gravimetric Standard for Liquid Micro-Flow

The dynamic gravimetric standard is used to calibrate micro-flow meters and to conduct research on new flow sensors. This micro-flow standard measures mass

Liquid Flow Standards

Summary The Fluid Metrology Group has a dynamic, gravimetric liquid flow standard spanning the flow range 0.2 L/s to 15 L/s with uncertainty less than 0.03 % at

Natural Gas Flow Calibration Service

Name(s) of Calibrations/SRMs/SRD/SRIs and any related programs: NIST Special Tests for Natural Gas Flow (18080S) Summary The Fluid Metrology Group (FMG)

Wind Tunnel

NIST’s wind tunnel can produce air speeds between 0.15 m/s and 40 m/s. The air speed reference is a Laser Doppler Anemometer (LDA) with an uncertainty of 2.5 %