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What is NIST Gas Flowmeter Calibration Guide about?

This document summarizes gas flow calibration services provided by NIST using two primary gas flow standards, the 34 L and 677 L PVTt (pressure, volume, temperature, time) standards. The PVTt standards measure gas flow by collecting a known volume of gas in an insulated tank over a measured period of time. The standards can calibrate gas flowmeters from 0.01 L/min to 2000 L/min with an uncertainty of less than 0.025%. The document provides details on the design, operation, and uncertainty analysis of the PV

Author

jpcrivari

Language

EN