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ISO 3915:1981

Plastics -- Measurement of resistivity of conductive plastics

General information
Withdrawn from 18.02.2022
Directives or regulations
None

Standard history

Status
Date
Type
Name
18.02.2022
Main
01.11.1981
Main
Specifies the requirements for the laboratory testing of the resistivity of specially prepared specimens of plastics made conductive by the incorporation of carbon black. The test is suitable for materials having a resistivity of less than 104 Ohm x m. A stable d.c. current is passed between electrodes at the ends of a test piece. A schematic diagram of the test circuit is given. The voltage drop between the two potential electrodes, set on the test piece while the current flows, is measured with an electrometer. The resistance of the portion of the test piece between the potential electrodes is independent of contact resistances.
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