Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: Design, Calibration And Operation Of Field Standard Test Measures
Author: William R Young Jr
Source: 2007 International School of Hydrocarbon Measurement
Year Published: 2007
Abstract: A field standard test measure is a graduated neck volumetric container, fabricated to stringent design criteria to deliver a specific volume of liquid when drained. To identify its true volume value, it is calibrated by an official agency such as the National Institute of Standards and Technology (NIST). The primary purpose of a field standard test measure is to provide a standardized volume, used for the calibration of displacement and tank provers, when calibrated by the waterdraw method. Field standard test measures are commonly referred to as test measures-for simplicity the term test measure or measures will be used in this paper for field standard test measures. Test measures can be either of the invertible or non-invertible (stationary bottom-drain type). Invertible measures are usually small measures of less than 10 gallons, while the non-invertible measures are mounted on legs and are typically greater than 10 gallons. They can also be classified by their graduated neck resolution. Test measures of the same volume can have either a normal or high sensitivity neck. Normal sensitivity measures have a larger neck diameter and therefore have less resolution on the scale. High sensitivity measures have a smaller diameter neck and have much greater resolution. Since the neck length gets much longer when its diameter is reduced, as the volume gets larger it becomes increasingly impractical to have a highly sensitive neck. Generally, measures of less than 100 gallons can have high sensitivity necks and not be too excessively tall.

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.