1.1These 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.
1.2The procedures appear in the following order:
| | | ASTM |
| | | Method |
| Procedures | Sections | References |
| Apparent Density | 12 | ... |
| Aqueous Extract Conductivity | 32 and 33 | D202 |
| Conditioning | 4 | D685 |
| Dielectric Strength | 16 – 19 | D149 |
| Impregnation Time | 20 – 24 | D202 |
| Moisture Content | 26 – 28 | D644 |
| Roll Quality | 25 | ... |
| Sampling | 3 | ... |
| Tensile Strength | 13 – 15 | D828 |
| Thickness | 6 – 10 | D374 |
| Weight | 11 | D646 |
| Weight Variability | 29 – 31 | ... |
1.3The values stated in inch-pound units are to be regarded as the standard.
1.4This 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.
1.5This 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.