ASTM D 1039:2016

1.1 These test methods cover the evaluation of the characteristics of glass-bonded, natural, or synthetic mica materials intended for use as electrical insulation. 1.2 Glass bonded mica materials are commercially available in both injection molded and compression molded types. These test methods are applicable to both types except for tensile strength methods. (See Section 41 .) 1.3 The test methods appear in the following sections: Test Method Section ASTM Test Method Arc Resistance 57 - 59 D495 Compressive Strength 33 - 35 D695 Conditioning 5 D618 Dielectric Strength 48 - 51 D149 Dissipation Factor 43 - 47 D150 and D2149 Heat Distortion Temperature 24 - 29 D648 Impact Resistance 36 - 39 D256 Modulus of Rupture 30 - 32 D790 and C674 Permittivity 43 - 47 D150 and D2149 Porosity 13 - 16 D116 Resistivity, Volume and Surface 52 - 56 D257 Rockwell Hardness 10 - 12 D785 Specific Gravity 6 - 9 D792 Specimens 4 Tensile Strength 40 - 42 D638 and D651 Terminology 3 D1711 Thermal Conductivity 17 - 19 C177 and E1225 Thermal Expansion 20 - 23 E228 and E289 Thickness 49 and 54 D374 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. See also Sections 45 , 49 , 54 , and 58 .

29.035.50