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Scope

1.1 These methods cover procedures for sampling and testing untreated mica paper to be used as an electrical insulator or as a constituent of a composite material used for electrical insulating purposes.

1.2 The procedures appear in the following order:

Significance and Use

Accurate determination of thickness is important for identification purposes. Thickness is related to weight and must be known in order to calculate apparent density and the dielectric strength.

Thickness variation affects the quality of roll winding and is useful in judging the uniformity of mica paper particularly with respect to dielectric breakdown voltage, impregnation time, and thickness of the end product.

Keywords

air resistance; apparent density; aqueous extract conductivity; dielectric strength; impregnation time; mica paper; tensile strength; thickness; weight; weight variability ; Untreated mica paper; Impregnation time; Mica; Mica paper; Sampling electrical inisulating materials; ICS Number Code 29.035.50 (Mica based insulating materials)

To find similar documents by ASTM Volume:

10.01 (Electrical Insulation (I): D69 - D2484)

To find similar documents by classification:

29.035.50 (Mica based materials)

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