ASTM D3394: Standard Test Methods for Sampling and Testing Electrical Insulating Board
SDO: ASTM: ASTM International
DOD Adopted ANSI Approved Approved
These test methods cover the sampling and testing of electrical insulating boards. These boards are porous, usually fibrous sheets used for dielectric and structural purposes in electrical apparatus.
These test methods are not intended for testing vulcanized fibre or molded laminated sheets.
These test methods are applicable to board materials having a nominal thickness of at least 0.030 in. (0.76 mm).
NOTE 1—For materials thinner than 0.030 in. (0.76 mm) see Test Methods D202.
The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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 consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
- aqueous extract characteristics pH
- ash content
- degree of polymerization
- dielectric strength
- electrical insulating board density
- impulse dielectric strength
- moisture content
- oil absorption
- tensile properties
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