Helium Research Center internal report
Subtitle: recalibration of Leeds & Northrup Company G-2 Mueller bridge, serial no. 1603629 and redetermination of the ice point resistance of Leeds & Northrup Company platinum resistance thermometer, serial no. 1586182
By: by Ted C. Briggs and Alvin R. Howard
Contributors: Howard, Alvin R.; United States. Bureau of Mines; Helium Research Center (United States. Bureau of Mines). Branch of Fundamental Research
Series: Helium Research Center Internal Report / U.S. Department of the Interior, Bureau of Mines -- no. 128; Helium Research Center Internal Report (United States. Bureau of Mines) -- no. 128.
Publisher: U.S. Department of the Interior, Bureau of Mines, Branch of Fundamental Research
Published: 1970
Place of publication: Amarillo, Tex
Language: eng
Number of pages: 26
Subjects: Testing; Helium; Resistance thermometers; Calibration
Other titles: Bureau of Mines, Helium Activity, Helium Research Center Internal Report; Recalibration of Leeds and Northrup Company G-2 Mueller bridge, serial number 1603629 and redetermination of the ice point resistance of Leeds and Northrup Company platinum resistance thermometer, serial number 1586182
Description: An internally consistent Mueller bridge and a reliable value of the ice point resistance are required for the accurate determination of temperatures with a platinum resistance thermometer. The decade steps of Mueller bridge, serial No. 1603629 were intercompared and the resistance of a standard resistor was measured. The triple point resistance of platinum resistance thermometer, serial No. 1586182 was measured in a commercial triple point of water cell. From these measurements, corrections for each dial reading of the bridge were tabulated, and the ice point resistance of the platinum resistance thermometer was computed.
Notes: "January 1970."

"Fundamental Research Branch, Project 7005."

Includes bibliographical references.

Also available online via Internet Archive.