Область применения

1.1 These test methods cover procedures for the testing of resin-coated glass fabrics and glass fabric tapes (Note 1) to be used as electrical insulation.

Note 1--Methods of testing varnished cloths and tapes are given in Methods D295.

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1.2 The warp threads in fabrics are the threads that are parallel with the length dimension as manufactured.

1.3 The procedures appear as follows:

Procedure SectionASTM Test Method ReferenceBreaking Strength22-28D828Conditioning6-8...Dielectric Breakdown Voltage and Di-electric Strength29-38D149, D295Dissipation Factor and Relative Permittivity52-60D150, E104, D5032Effect of Elevated Temperature39-45D1830Resistance to Oil46-51D3487Sampling3-5...Thermal Endurance68 D1830Thickness16-21D374Thread Count12-15...Weight 9-11...Weight Loss at Elevated Temperature61-67 D5423

1.4 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are for information only.

1.5This 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 warning statement are given in 35.1.1 and 58.1