Email Document Reference

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

Title: A New Reference Method For Testing Hydrometers
Author: Frank E. Jones
Source: 1990 Measurement Science Conference
Year Published: 1990
Abstract: The two methods for determining the density or specific gravity of liquids used in testing hydrometers are: comparison with standard reference hydrometers and hydrostatic weighing. In this paper a new method for the determination of the density of liquids for the testing of hydrometers is described. The method involves measuring the differential Dressure between two vertically-separated points and dividing by the product of the acceleration due to gravity and the vertical separation. A system based on this method is based on sound scientific principle, easy to use, very precise, and easily and accurately calibrated using water. The results for such a system are demonstrated for water and nitric acid solutions. The precision is shown to be approximately 1 part in 10,000 or O.Ol%, which is ideal for hydrometers the precision of which is about 1 part in 1,000 or 0.1%.

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.