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ASTM D116-86(2025)
Standard Test Methods for Vitrified Ceramic Materials for Electrical Applications
1.1 These test methods outline procedures for testing samples of vitrified ceramic materials that are to be used as electrical insulation. Where specified limits are mentioned herein, they shall not be interpreted as specification limits for completed insulators.
1.2 These test methods are intended to apply to unglazed specimens, but they may be equally suited for testing glazed specimens. The report section shall indicate whether glazed or unglazed specimens were tested.
1.3 The test methods appear as follows:
| Section | Test Method | Related |
| 6 | Compressive Strength | C773 |
| 13 | Dielectric Strength | D618, D149 |
| 8 | Elastic Properties | C623 |
| 15 | Electrical Resistivity | D618, D257, D1829 |
| 7 | Flexural Strength | C674, F417 |
| 9 | Hardness | C730, E18 |
| 5 | Porosity | C373 |
| 14 | Relative Permittivity and Dissipation | D150, D2149, D2520 |
| 4 | Specific Gravity | C20, C329, F77 |
| 10 | Thermal Conductivity | C177, C408 |
| 12 | Thermal Expansion | C539, E288 |
| 11 | Thermal Shock Resistance |
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1.4 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. Specific warning statements are given in 11.3, 13.5, and 15.3.
1.5 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.
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