Insulating liquids. Measurement of relative permittivity, dielectric dissipation factor (tan δ) and d.c. resistivity Ingestion-build-109673 5 Verification and compliance processes

5 Verification and compliance processes for SAM

BS 718:1991 includes some technical changes with respect to BS 718:1979

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BS 984 introduces provisions for the metrological control of packaged goods including knitting yarn and rug yarn

data structure and relationships and supports a methodology that is extensible

Insulating liquids. Measurement of relative permittivity, dielectric dissipation factor (tan δ) and d.c. resistivity Ingestion-build-109673 5 Verification and compliance processes1 Scope This International standard describes methods for the determination of the dielectric dissipation factor (tan ), relative permittivity and d. c. resistivity of any insulating liquid material at the test temperature. The methods are primarily intended for making reference tests on unused liquids. They can also be applied to liquids in service in transformers, cables and other electrical apparatus. However the method is applicable to a single