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ASTM International, 07/01/2016
Publisher: ASTM
File Format: PDF
$31.00$62.00
Published:01/07/2016
Pages:5
File Size:1 file , 100 KB
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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:
Procedure
Section
Compressive strength
6
C773
Dielectric strength
13
D618, D149
Elastic properties
8
C623
Electrical resistivity
15
D618, D257, D1829
Flexural strength
7
C674, F417
Hardness
9
C730, E18
Porosity
5
C373
Relative permittivity and dissipation factor
14
D150, D2149, D2520
Specific gravity
4
C20, C329, F77
Thermal conductivity
10
C177, C408
Thermal expansion
12
C539, E288
Thermal shock resistance
11
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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precaution statements are given in 11.3, 13.5, and 15.3.
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