ASTM D1169-19a

ASTM D1169-19a

Standard Test Method for Specific Resistance (Resistivity) of Electrical Insulating Liquids

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1.1 ,This test method covers the determination of specific resistance (resistivity) applied to new electrical insulating liquids, as well as to liquids in service, or subsequent to service, in cables, transformers, circuit breakers, and other electrical apparatus.

1.2 ,This test method covers a procedure for making referee tests with dc potential.

1.3 ,When it is desired to make routine determinations requiring less accuracy, certain modifications to this test method are permitted as described in Sections 19 –, 26.

1.4 ,The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 ,This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See 17.4.3 for a specific warning statement.

1.6 ,This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


Significance and Use:

4.1 ,The resistivity of a liquid is a measure of its electrical insulating properties under conditions comparable to those of the test. High resistivity reflects low content of free ions and ion-forming particles, and normally indicates a low concentration of conductive contaminants.

Additional Info

Author American Society for Testing and Materials (ASTM International)
Committee D27.05 - Committee D27 on Electrical Insulating Liquids and Gases
Published by ASTM
Document type Standard
Theme ,Insulating oils
ICS 29.040.10 : Insulating oils
Number of pages 8
Replace ASTM D1169-19
Set ASTM Volume 10.03 - Multi-User - Single-Site Online
Document history ,,,,,
Keyword D1169

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