NIST logo

Publication Citation: Removing the Hydrocarbon Liquid from Hydrocarbon Liquid Flow Standards

NIST Authors in Bold

Author(s): Jodie G. Pope; Christopher J. Crowley;
Title: Removing the Hydrocarbon Liquid from Hydrocarbon Liquid Flow Standards
Published: September 24, 2013
Abstract: NIST and other laboratories calibrate meters that measure the flow of valuable liquids such as petroleum products. Historically, these calibrations have been conducted using Stoddard solvent. Laboratories using Stoddard solvent for liquid-flow calibrations must contend with flammability, inhalation toxicity, and hazardous waste disposal requirements. In response to these health and safety concerns, we modified NISTs piston-prover flow standards so that calibrations are now conducted with mixtures of propylene glycol and water (PG + W). In this paper, we describe the modifications to NIST‰s calibration systems and our experiences in using the modified systems to calibrate turbine, positive displacement, and coriolis meters.
Conference: FLOMEKO 2013
Proceedings: The 16th International Flow Measurement Conference FLOMEKO 2013
Location: Paris, -1
Dates: September 24-26, 2013
Keywords: Liquid Flow Calibration; Propylene glycol, Stoddard solvent
Research Areas: Impacts, Measurement Services
PDF version: PDF Document Click here to retrieve PDF version of paper (727KB)