Description and Uncertainty Analysis of NIST’s 20 Liter Hydrocarbon Liquid Flow Standard (20 L HLFS)

Published

October 15, 2010

Author(s)

Aaron N. Johnson, Christopher J. Crowley, Tsyh Tyan Yeh

Abstract

The National Institute of Standards and Technology (NIST) uses a bi-directional piston prover as its primary standard for measuring hydrocarbon liquid flows ranging from 1.86 × 10-5 m3/s (0.3 gpm) to 2.6 × 10-3 m3/s (40 gpm). An uncertainty analysis is presented that shows that the uncertainty over this flow range is 0.074 % (k = 2). As a verification of the uncertainty analysis NIST shows comparison results between its new 20 L piston prover standard and its other hydrocarbon liquid standards and its water flow standard using a dual rotor turbine meter as the transfer standard.

Conference Dates

October 11-15, 2010

Conference Location

Taipei

Conference Title

15th Flow Measurement Conference (FLOMEKO)

Pub Type

Conferences

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Keywords

NIST liquid hydrocarbon flow standard, piston prover, water draw procedure, liquid flow calibration, uncertainty analysis, 20 L HLFS

Citation

Johnson, A. , Crowley, C. and , T. (2010), Description and Uncertainty Analysis of NIST’s 20 Liter Hydrocarbon Liquid Flow Standard (20 L HLFS), 15th Flow Measurement Conference (FLOMEKO), Taipei, -1, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906350 (Accessed October 15, 2025)