Actions for Sources of Systematic Bias Reflected in an ASTM Collaborative Study on Water in Oil Measured by the Karl Fischer Method

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Sources of Systematic Bias Reflected in an ASTM Collaborative Study on Water in Oil Measured by the Karl Fischer Method / SA. Margolis

Conference Author
Electrical Insulating Materials: International Issues (1999 : Seattle, Washington)
Physical Description
1 online resource (11 pages) : illustrations, figures, tables
Additional Creators
Margolis, SA., American Society for Testing and Materials, and ASTM International
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Summary
A collaborative study on the precision and bias of the measurement of water in transformer oils indicated that an acceptable level of precision was achieved using the revised ASTM Test Method for Water in Insulating Liquids by Coulometric Karl Fischer Titration (D 1533-96) and a sample size of 7 mL. Analysis of the distribution of the laboratory results indicates the existence of a systematic bias in the accuracy of the measurement which is related to the instrument design, solvent composition, and calibration of the instrument. Additionally, evidence is presented that indicates that a portion of the water in the oils is not titrated by the coulometric method.
Dates of Publication and/or Sequential Designation
Volume 2000, Issue 1376 (January 2000)
Subject(s)
Other Subject(s)
ISBN
9780803154278 (e-ISBN)
9780803126138
0803126131
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 8.
Other Forms
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2000. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details
Mode of access: World Wide Web.
Source of Acquisition
ASTM International PDF Purchase price USD25.
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