Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Capabilities and Uncertainties of the Piston Gage Pressure Standards at NIST

Published

Author(s)

Douglas A. Olson

Abstract

The National Institute of Standards and Technology operates and maintains piston gage pressure standards from 7 kPa to 280 Mpa, a span of over 4 decades in pressure. Gas capabilities range from 7 kPa to 1000 Mpa, and oil capabilities range from 1 Mpa to 100 Mpa. Uncertainties on the gas standards are lowest around atmospheric pressure, estimated at 13 ppm, and range up to 40 ppm (both at k=2). For the oil gages, the uncertainties range from 18 ppm to 49 ppm (k=2). Effective areas for the gas standards were established through calibration of one of the standards against a gas thermometer manometer, and successive calibrations of higher range standards against lower range standard. Effective areas for the oil standards were determined from characterizations of three controlled clearance primary piston gage standards, and calibration of other standards against those controlled clearance gages.
Proceedings Title
Proceedings of the Second Pressure Metrology Workshop Workshop
Conference Dates
November 26-27, 2001
Conference Location
New Delhi, IN
Conference Title
Pressure Metrology Workshop

Keywords

controlled clearance gages, measurement uncertainty, piston gages, pressure standards

Citation

Olson, D. (2001), Capabilities and Uncertainties of the Piston Gage Pressure Standards at NIST, Proceedings of the Second Pressure Metrology Workshop Workshop, New Delhi, IN (Accessed April 22, 2024)
Created November 30, 2001, Updated February 19, 2017