ASTM D1039-16(2022) - 1.5.2022
 
Significance and Use

6.1?This characteristic is useful for specification purposes and has utility as a quality control parameter.

 
1. Scope

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See also Sections 45, 49, 54, and 58.

1.6?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 
2. Referenced Documents

E228-22

Standard Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer

E289-17

Standard Test Method for Linear Thermal Expansion of Rigid Solids with Interferometry

E1225-20

Standard Test Method for Thermal Conductivity of Solids Using the Guarded-Comparative-Longitudinal Heat Flow Technique

D785-23

Standard Test Method for Rockwell Hardness of Plastics and Electrical Insulating Materials

D6054-97

Standard Practice for Conditioning Electrical Insulating Materials for Testing

D2149-13(2021)

Standard Test Method for Permittivity (Dielectric Constant) and Dissipation Factor of Solid Dielectrics at Frequencies to 10 MHz and Temperatures to 500 ?C

D1711-24

Standard Terminology Relating to Electrical Insulation

D792-20

Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement

D790-17

Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials

D495-22

Standard Test Method for High-Voltage, Low-Current, Dry Arc Resistance of Solid Electrical Insulation

C674-13(2023)

Standard Test Methods for Flexural Properties of Ceramic Whiteware Materials

C177-19e1

Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus (Includes all amendments and changes 2/23/2023).

D374-99

Standard Test Methods for Thickness of Solid Electrical Insulation

D257-14(2021)e1

Standard Test Methods for DC Resistance or Conductance of Insulating Materials (Includes all amendments and changes 5/6/2021).

D256-23e1

Standard Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics (Includes all amendments and changes 4/7/2023).

D150-22

Standard Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation

D149-20

Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies

D116-86(2020)

Standard Test Methods for Vitrified Ceramic Materials for Electrical Applications

D695-23

Standard Test Method for Compressive Properties of Rigid Plastics

D651-84

Method of Test for Tensile Strength of Molded Electrical Insulating Materials (Withdrawn 1989)

D648-18

Standard Test Method for Deflection Temperature of Plastics Under Flexural Load in the Edgewise Position

D618-21

Standard Practice for Conditioning Plastics for Testing

D638-22

Standard Test Method for Tensile Properties of Plastics