ASTM D1169 – Standard Test Method for Specific Resistance (Resistivity) of Electrical Insulating Liquids
Description:
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.
Scope
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.
ASTM D1160